Battery life first impressions - Verizon HTC One (M9)

What are you guys seeing in your first few days with your M9?
As for me, I can't remember any device I have ever owned that has had worse battery life than this M9. 3 hours of "light-slightly moderate" use brings me down to 75%. Very disappointing thus far.

definitely a downgrade from the M8 battery life. However once we are able install custom rom's and kernels ect. I expect it will improve.

xgerryx said:
What are you guys seeing in your first few days with your M9?
As for me, I can't remember any device I have ever owned that has had worse battery life than this M9. 3 hours of "light-slightly moderate" use brings me down to 75%. Very disappointing thus far.
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Click to collapse
Interesting. Compared to my de-bloated, undervolted, S-Off and custom ROM'ed (Adrenaline) M8, I am seeing similar battery life comparatively on my M9. I did disable a lot (if not all) of the Bloat on the M9, so not sure if that helps the cause.

Horrible. I have to charge my phone about after 5-6 hours of use. I work in IT so I know Exchange is hammering the battery, but on my M8, I could last 8-9 hours before charge. This is includes browsing /r/sysadmin and other reddits.
For some reason too, it seems the QuickCharge 2.0 is slower on the M9. On my M8, it was stupid quick.

My experience has been mostly positive with the M9. First, I disabled all the VZW bloatware and then let the battery run very low and fully charged it. I repeated this 3 more times over the weekend. I took my battery off the charger at 6:00 AM and with medium use, I still have 84% left. The M8 was slightly better when running GPE so it's not apples to apples, yet.

xgerryx said:
What are you guys seeing in your first few days with your M9?
As for me, I can't remember any device I have ever owned that has had worse battery life than this M9. 3 hours of "light-slightly moderate" use brings me down to 75%. Very disappointing thus far.
Click to expand...
Click to collapse
My usage and battery life is comparable to yours. After 9 hours of only texts and phone calls I'm down to 50%.

I honestly think its too early to tell. I've disabled most, if not all, of the bloatware and I'm seeing "decent" but not "great" battery life. The phone still has the "new phone vibe" though, so I'm likely picking it up more frequently than I normally would. I'm also coming from the m7 though, not the m8, so my expectations are probably different. Custom ROMs and kernels are definitely going to change this though.
Cores can be completely disabled in custom kernels, which will likely provide a big boost with little performance loss (how often do you really think all four of those high-performance cores are being utilized?). Likewise, tweaking max clock speeds, undervolting, and tweaking/changing the governor will likely help things a lot too. We're just too used to our old ROM'd phones. It definitely seems like we'll be able to squeeze much more battery life out of the m9.

After reading some of the replies I think I'll go through and disable everything I can since I only did that to a moderate degree before. I am hoping that once we get some optimized kernels and different features it will help. Also, full root access to Greenify could help, but so far it's a horror show.

Coming from a galaxy s3 and sad to say iPhone 5 the battery has been superior to those two.
Sent from my HTC6535LVW using XDA Free mobile app

Chewcracka said:
Coming from a galaxy s3 and sad to say iPhone 5 the battery has been superior to those two.
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Click to collapse
My GSIII quadrupled what I'm getting on this M9. My galaxy s5 doubled it, easily. I'm just hoping it gets better.

Weird, I've been on it moderately all day and on 10% as of right now. Maybe I'm just used to horrible battery of the iphone
Sent from my HTC6535LVW using XDA Free mobile app

Feels about the same as my m8 maybe even a tad less honestly. Might just be from overuse running stock rom though.

Something with these new phones is killing the battery. I got the S6 and the battery is horrible as well, I can't even go a full day without recharging.
Every OS release Google talks about all these features that are supposed to improve battery life, but it only seems to make them worse.

Stock non rooted, disabled as much bloatware as I could. Haven't Set up any of my Tasker profiles (lack of root makes them useless for now) and I got a full 1day 5hrs before dropping below 15 percent. Battery life seems pretty much par for the course on a flagship phone. I also had an s6 edge for a couple of days but picking it up off the counter was a weird experience for me so I switched back to HTC. Aside from the heating problem which I believe will be resolved either by the community or HTC I love the phone.

geoff5093 said:
Every OS release Google talks about all these features that are supposed to improve battery life, but it only seems to make them worse.
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Click to collapse
The fact of the matter is yes, Google is making improvements in regards to battery life... but these improvements are offset and negated by consumer demand for faster, more powerful phones. The Snapdragon 810 is a beast of a mobile processor; its got two quad-core CPUs in it, so it definitely has to use some power to operate.
I can't wait to get a custom ROM my M9 and (hopefully) disable two of the A57 cores and see what happens (and see how performance is affected, if any).

I must say that I like it so much better than the SGS3! I can go a day and a half with out charging it... S3 was every day!
Even using GPS is less consuming... . Well worth the wait for HTC to get it right!
Other reasons that I like it better than the S3:
1. You can actually keep a grip on the M9!
2. The M9 is not as fragile!
3. Love the feel!
4. The audio is excellent (in my opinion better than any other available)!
5. The 3.5mm plug has a firm fit!
6. The charge port and audio port are both on the bottom!
I will stop there - I love this phone! (M9)

I'm literally sitting here with my phone plugged in, only with WiFi on and chrome browser, bloat disabled, screen on low, force closed most processes (ie play store, etc) and watching my battery % get lower... Plugged in!

WillyRy said:
I'm literally sitting here with my phone plugged in, only with WiFi on and chrome browser, bloat disabled, screen on low, force closed most processes (ie play store, etc) and watching my battery % get lower... Plugged in!
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Click to collapse
Plugged into what, though? The 500mA maximum of the USB2 ports on your desktop/laptop is not enough to charge this phone with the screen on. You can slow-charge it at 500mA with the screen off, but it still takes some time. USB3 ports technically have a max draw of 900mA, which should be enough to slowly charge with the screen on, but in practice some laptops/motherboards won't allow any more than 500mA on their USB3 ports either. Use a wall charger for best results -- check the output rating though.
The included wall charger with the m9 is rated for [email protected] (1500mA). I'm not a fan of charging my devices extremely quickly, so I'll probably stick with the 1A (1000mA) charger that came with my m7.

Rain724 said:
Plugged into what, though? The 500mA maximum of the USB2 ports on your desktop/laptop is not enough to charge this phone with the screen on. You can slow-charge it at 500mA with the screen off, but it still takes some time. USB3 ports technically have a max draw of 900mA, which should be enough to slowly charge with the screen on, but in practice some laptops/motherboards won't allow any more than 500mA on their USB3 ports either. Use a wall charger for best results -- check the output rating though.
The included wall charger with the m9 is rated for [email protected] (1500mA). I'm not a fan of charging my devices extremely quickly, so I'll probably stick with the 1A (1000mA) charger that came with my m7.
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Click to collapse
Using included wall charger and cable.
Plugged it in this afternoon, turned off screen and walked away... in 2 hours it gained 2% from 47 to 49
Edit:
Very well could be faulty device. Using different cables/outlets in different rooms yields same results. M7 on same setup charges steadily during heavy use. Using m7 outlet now. Dropped from 17% to 14% while editing this post. Better screen off now so it doesn't die on me...

I usually wake up by watching a few youtube videos. This morning I woke up, grabbed my phone off the charger and watched a 16 minute video at 1080p with adaptive brightness (which was low). In the 16 minutes my battery went from 100% to 83%. That is atrocious. Hopefully new ROM's and kernels will be able to remedy this.
Also, the other day I was using a quick charger I got at Verizon with my phone and got the message I was using the phone too much to charge. I could understand if it was plugged into a USB port on my computer. How did I get this message while using a quick charger?

Related

Story @ Tech Crunch.. QUESTION FOR CURRENT EVO USERS

In the story he states that the batter would last four hours? any truth to this? he also explained that there is lag in the sense?
http://techcrunch.com/2010/05/29/htc-evo-4g/
Maybe 4 hours of non-stop web browsing with the brightness all the way up while on 4G. Also, I've never had any lag with Sense.
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The battery is is very poor. I'm not exactly sure why that's the case since the EVO doesn't report the screen as a large draw. For example, I unplug my EVO, connect my Bluetooth headset and listen to a podcast for 10 minutes. That drains the battery to 92% from a full charge.
You will most likely have to carry a spare battery to get through the day, with light usage.
I'm hoping its an optimization issue and they can fix the battery issue with an update. Fingers crossed.
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hmm, alright i mean this is big for a person who is out 24-7. (arnt we all) i wonder if it has to do with anything similar to what the hero had when it was released.
My battery life is not perfect. But people always have this problem. I was a G1 owner and everyone complained about the battery life when it first came out. And then slowly after a mont or two everybody stopped...why? Because the battery life got better with time. From 5 hours or so to 9 or 10 hours.
Then I went to an HD2. The first week I was so scared I had made a huge mistake because the battery would last about 4 or 5 hours. After I did as suggested and let the battery completely burn out and then completely recharge for about three cycles, the HD2 had the best battery I had ever seen. i could use it for 2 days and have 60% left.
Now I have an Evo. And the first stay (with constant use) it died after about 4.5 hours. But I am going through the process of draining and then FULL recharge of 6-8 hours and I'm sure it will be fine.
People think they plug the phone in an hour or two and it says 100% and they have charged it. My opinion is that it takes the battery a while to know what 100% and 0% are on any given battery. After it cycles through a few times it will actually have a true accounting of the battery life, power consumption.
That is all my opinion and experience. I am hoping the EVO has a similar battery life to the HD2. That would be perfect for me.
EDIT: And as for lag....the guy is obviously on crack and just saying stuff to say stuff. I doubt he even has an EVO. He's reading about Sense Lag on the HD2 which there was some) and passing that information on. Anyone who actually HAS an evo have any lag? I think not.
And if he thinks an iPhone 3GS in ANY way blows the EVO out of the water...he is obviously lying. I mean based on feature set alone. There is no way the iphone can browse as fast (4G...hello), operate as fast (gee isn't that processor almost twice as fast), take better pictures? No. Have a front facing cam? No. Oh yeah...that screen size on the iPhone sure is better than the EVO. WTF?
Some people's kids.
ministersin said:
My battery life is not perfect. But people always have this problem. I was a G1 owner and everyone complained about the battery life when it first came out. And then slowly after a mont or two everybody stopped...why? Because the battery life got better with time. From 5 hours or so to 9 or 10 hours.
Then I went to an HD2. The first week I was so scared I had made a huge mistake because the battery would last about 4 or 5 hours. After I did as suggested and let the battery completely burn out and then completely recharge for about three cycles, the HD2 had the best battery I had ever seen. i could use it for 2 days and have 60% left.
Now I have an Evo. And the first stay (with constant use) it died after about 4.5 hours. But I am going through the process of draining and then FULL recharge of 6-8 hours and I'm sure it will be fine.
People think they plug the phone in an hour or two and it says 100% and they have charged it. My opinion is that it takes the battery a while to know what 100% and 0% are on any given battery. After it cycles through a few times it will actually have a true accounting of the battery life, power consumption.
That is all my opinion and experience. I am hoping the EVO has a similar battery life to the HD2. That would be perfect for me.
EDIT: And as for lag....the guy is obviously on crack and just saying stuff to say stuff. I doubt he even has an EVO. He's reading about Sense Lag on the HD2 which there was some) and passing that information on. Anyone who actually HAS an evo have any lag? I think not.
And if he thinks an iPhone 3GS in ANY way blows the EVO out of the water...he is obviously lying. I mean based on feature set alone. There is no way the iphone can browse as fast (4G...hello), operate as fast (gee isn't that processor almost twice as fast), take better pictures? No. Have a front facing cam? No. Oh yeah...that screen size on the iPhone sure is better than the EVO. WTF?
Some people's kids.
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Click to collapse
I understand what you are saying. That was the only reason i am worried about buying an EVO. This author must have had all the applications syncing every 15 minutes. I have an apple itouch not sure how close the phone and this thing is but I like it. It is smooth and quick. (buts its not a phone). When it comes to android... Its about the experience that comes with it.
But this guy is positively being paid off haha
The battery is is very poor. I'm not exactly sure why that's the case since the EVO doesn't report the screen as a large draw. For example, I unplug my EVO, connect my Bluetooth headset and listen to a podcast for 10 minutes. That drains the battery to 92% from a full charge.
You will most likely have to carry a spare battery to get through the day, with light usage.
I'm hoping its an optimization issue and they can fix the battery issue with an update. Fingers crossed.
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With light usage I had 36% remaining after 14 hours the other day. I think you just need to give the battery time to get adjusted. However, I have noticed that it seems to drain faster from 100-80% than it does from 80-50%.
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TheBiles said:
With light usage I had 36% remaining after 14 hours the other day. I think you just need to give the battery time to get adjusted. However, I have noticed that it seems to drain faster from 100-80% than it does from 80-50%.
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Click to collapse
Well I actually just recently noticed the same about my iPhone 3G. The first 10-15% go really fast.
My evo seems to do pretty good with the battery I can go the whole day without needing a charge but I do charge it when I get home. When I'm using it for games all day it drains pretty quick but at those time I plug it in... I don't know what they expect when your rocking a 1ghz processor, a 4.3 inch screen, and about every type of network connection you can fit in a phone... as far as lag goes on this phone I notice very little mainly when I'm installing like 3 or 4 apps at once... compared to my hero this thing is a rocket! And once Android 2.2 is put on here this thing will be smoking.
Sent from my PC36100 using Tapatalk
My Evo lasts for 8-9 hours. That's 70% idle with screen off. Cell Standby at 40+% is killing my battery.
My motorola droid in the same time still has over 50% charge. There's no question that the Evo is a battery drainer for whatever reason.
hate to say it, but once a fan boy always a fan boy. I used to have a win-mo device (touch pro) and i like it, then i moved up (should i say downgraded) to the instinct- worst decision ever. than i used the android platform on my hero. I'd have to say its leaps and bounds easier than win-mo.. My brother has an iPhone which i always play with when he comes over, and i think its a really easy interface to play with.. thats all. The speeds at which apps were open weren't any better than my hero. I also opened up maps on his phone and mine, and my location was dead on with the hero, the iPhone was 100meters. LOL.
But everyone needs to try other stuff out and make there own decisions, dont let someone who is obviously a fan boy tell you whats good and bad.
thechiman said:
The battery is is very poor. I'm not exactly sure why that's the case since the EVO doesn't report the screen as a large draw. For example, I unplug my EVO, connect my Bluetooth headset and listen to a podcast for 10 minutes. That drains the battery to 92% from a full charge.
You will most likely have to carry a spare battery to get through the day, with light usage.
I'm hoping its an optimization issue and they can fix the battery issue with an update. Fingers crossed.
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Click to expand...
Click to collapse
thats ur prob ur using bluetooth it will use more battery and then ur playing the podcast at the same time any phone u do that on u will use more battery
the battery technology is a few years old. the cpu is 1ghz.. the phone is sniffing 3g/4g/wifi/bt plus the shiny screen and backlight all use power. the battery technology being used in this state of the art phone is not advancing as fast as the phones are...
the reason the top ~10% of the charge goes so quickly is due to the you taking the phone off charge.. the cells in Li-ION batteries are not created equal. some cells will get a stronger/longer charge than other cells. once you take the battery off charge, the cells that are stronger in charge than the others will feed that extra charge to those other cells, so your battery charge will fall down to around 90 or so pretty quickly out the gate.. from there the cells are all stable and equally charged and stay at a constant discharge rate for about ~87% to about ~55%.
once the charge falls below 55% the cells really start to lose their charge and the battery curve drops drastically.
when you "top off" the phone for , say, 30 minutes or so and you take it off charge and you see 100%. do understand that one or two cells have a fuller (my word) charge than others.. once the cells equalize, then you will see the tru charge (which will be much much less than 100%)...
I'll post my findings here although probably no one will believe me. I'm not a fanboi since i've phones on three carriers.
My EVO will lose 2% per hour sitting idle which is fantastic. My HD2 loses approx. the same amount, maybe a little less.
I've found the EVO to be no more power hungry than any "superphone" i've used including the iphone 3gs.
signal strength also plays a part
one thought based on my experience with a palm pre and htc hero: signal strength.
My office has very low signal strength (1 bar or less). The battery seems to drain quite fast here. If I'm somewhere else with good signal, my battery lasts much longer. Same battery drain if you're going in and out of evdo / 1Rxx.
Sean
My battery life is like all the other phones i had lately (see my sig).
No more, no less.
I have to say my battery is getting better with going through a couple full charges, as for lag nope none not here
“Phone idle,” and “Android system” that eat up over 75% of the life.
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Click to collapse
LMAO, the fact that he wrote that puts severe doubt in his skills to review an android phone.
I can't believe this thread is going on seeing as that's an Apple Fanboy site. Will say anything to make his Iphone sound like the best thing ever. He lost all credibility when he said the Nexus One and Incredible were better phones.
marctronixx said:
the battery technology is a few years old. the cpu is 1ghz.. the phone is sniffing 3g/4g/wifi/bt plus the shiny screen and backlight all use power. the battery technology being used in this state of the art phone is not advancing as fast as the phones are...
the reason the top ~10% of the charge goes so quickly is due to the you taking the phone off charge.. the cells in Li-ION batteries are not created equal. some cells will get a stronger/longer charge than other cells. once you take the battery off charge, the cells that are stronger in charge than the others will feed that extra charge to those other cells, so your battery charge will fall down to around 90 or so pretty quickly out the gate.. from there the cells are all stable and equally charged and stay at a constant discharge rate for about ~87% to about ~55%.
once the charge falls below 55% the cells really start to lose their charge and the battery curve drops drastically.
when you "top off" the phone for , say, 30 minutes or so and you take it off charge and you see 100%. do understand that one or two cells have a fuller (my word) charge than others.. once the cells equalize, then you will see the tru charge (which will be much much less than 100%)...
Click to expand...
Click to collapse
the battery in the EVO (and pretty much every phone evar) is a single cell battery.
you have no idea what your talking about do you?

[Q] Horrible Battery Life

How is everyone finding the battery life. Personally, I am finding it just plain horrible. I'm not sure what the issue is specifically but either something is draining it or it is just really that bad, in which case I will return it. I can't get a day's worth of moderate use out of it. It seems to be at most half of what I get from my note 10.1 and they aren't set up any differently. I've tried some of the basics like turning down the screen brightness (which annoys me), turning off the smart stay (but why have a feature you can't use), tweaking email checking settings, turning off samsung sync, turning off bluetooth (don't use it), and locations services. Is anyone else seeing this as an issue and does anyone have any additional suggestions for me to try?
Thanks in Advance
I get about two days between charges on mine. I get a decent amount of usage on a daily basis between email, Facebook, and candy crush. I even have Google Now running. How many charge cycles have you been through?
05GT said:
I get about two days between charges on mine. I get a decent amount of usage on a daily basis between email, Facebook, and candy crush. I even have Google Now running. How many charge cycles have you been through?
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Click to collapse
If by charge cycles you mean fully discharging the phone until it shuts off, I haven't done that, but could give it a shot. It has gone down to 10% several times though.
No battery problems here. I wouldn't blame charge cycles, if they have any effect at all, it is minor. If I were you, I would do a factory reset, followed by an exchange if the reset doesn't fix it.
I have smart stay on , backlight on auto, and take no extra precautions for battery savings.
DownTFish said:
How is everyone finding the battery life. Personally, I am finding it just plain horrible. I'm not sure what the issue is specifically but either something is draining it or it is just really that bad, in which case I will return it. I can't get a day's worth of moderate use out of it. It seems to be at most half of what I get from my note 10.1 and they aren't set up any differently. I've tried some of the basics like turning down the screen brightness (which annoys me), turning off the smart stay (but why have a feature you can't use), tweaking email checking settings, turning off samsung sync, turning off bluetooth (don't use it), and locations services. Is anyone else seeing this as an issue and does anyone have any additional suggestions for me to try?
Click to expand...
Click to collapse
Can you please post some screen shots of your battery life at the end of a typical cycle? It will help with comparisons by giving us more details on your running apps, screen-on display times, etc. Also, what wakelocks do you have? Use BetterBatteryStats or Wakelock Detector from the Play store for that. This info might help us to identify just how much drain is related to rogue apps or the general battery life itself.
sefrcoko said:
Can you please post some screen shots of your battery life at the end of a typical cycle? It will help with comparisons by giving us more details on your running apps, screen-on display times, etc. Also, what wakelocks do you have? Use BetterBatteryStats or Wakelock Detector from the Play store for that. This info might help us to identify just how much drain is related to rogue apps or the general battery life itself.
Click to expand...
Click to collapse
Thanks. Just downloaded BetterBatteryStatus. I'll let it run for a bit and see what comes up. I'll post what I came up with with screen shots from it. Thanks for pointing me in a direction.
Also, it'd help to know how many hours "just plain horrible" is.
I'm not delighted by the battery life I'm seeing, I'm finding I want to charge every night, and that I can easily consume 15% / hour or more even without the screen turned up past 20-25%. (watching video off the NAS in the house.)
Then again, this is the first LCD display I've been able to read in full sunlight, and that's remarkable to me. I often wind up with full sun in the morning when I get up, and am delighted that if I did charge overnight I can use the device even then.
The battery needs some initial "training".
Charge fully on the first and run it all the way down to nearly zero, and fully charge again.
DO NOT interrupt the initial charge.
Battery life is great here after 5 cycles running it to 1% and recharging full at first it was draining faster but now I can watch 4 hours of netflix and still have 25% left nice thing is that the battery charges superfast so no worries
DownTFish said:
If by charge cycles you mean fully discharging the phone until it shuts off, I haven't done that, but could give it a shot. It has gone down to 10% several times though.
Click to expand...
Click to collapse
10% is just fine, for purposes of calibrating the battery meter. Preferable actually. You shouldn't actually drain the device until shutdown. There are safeguards that are supposed to ensure the battery voltage does not drop too low (its not actually zero when the phone shuts down). However, in reality these safeguards are not always failsafe and I've seen plenty of cases on various Android devices where letting the battery drain to shutoff renders the battery unable to take a charge (below the minimum threshold voltage). Sometimes, letting the battery charge overnight will bring the battery back. Otherwise, you are pretty screwed, as the only remedy would be a battery meter with a boost function.
In any case, the battery meter is not very accurate, even under the best of circumstances, so letting it drain to 10% is plenty accurate enough. Then let it charge to 100%, and let it sit at full for a while, as fully saturating the battery takes extra time.
---------- Post added at 11:15 AM ---------- Previous post was at 11:08 AM ----------
That said, its hard to say what "moderate use" means. Everyone uses their devices differently. If you are playing intensive games, downloading files, heavy internet usage, it can drain the battery much faster than other activities. And the number of hours of screen-on time is key. So the idea of getting some battery stats and screenshots, is a good one.
I haven't been tracking screen-on time myself. But I find the battery to be decent. I use it a good amount in the evening (don't bring it to work) mostly for reading and web browsing. I have brightness on 40-50% usually (sometimes less, if the room is darker). The battery was just under 40% after 2 nights of use (maybe 40 hours after the last charge). Just guessing, but maybe 3 or 4 hours of screen on time?
Some online reviews mentioned the battery life is not as good as some other comparable devices (such as Nexus 7 and iPad Mini). Not surprising, since the Note 8 has a faster processor and higher resolution screen than either. And so far, battery life is not amazing, but seems comparable or better (better drain while idle) than my old HTC Flyer tablet. So for me, thats just fine.
I got about 4 hours screen-on time on my first battery cycle with heavy usage. Was playing games, movies, internet browsing, etc. My second and third cycles were better, giving me 5-6 hours screen-on time with moderate to heavy usage. Didn't really play any movies, but did play a fair amount of games and stuff.
On those later cycles my screen-on drain represented about 85% of my overall drain. This leads me to say that you can expect 4.5-6.5 hours of screen-on time with the Note 8, depending on usage. Keep in mind that I keep wifi always on, disabled bluetooth/auto-sync/smart stay, stopped some running apps like Maps and Factory Test, and kept brightness down to about 15% of the max setting.
Screen is definitely the big drain here, and these results lead me to believe that even with root and apps like Greenify I would not get much better results. Looks like any further battery savings will need to come from a custom kernel and custom rom (unless maybe you root and then underclock/undervolt using a third party app like Voltage Control or SetCpu). Anyone else have similar (or different ) results?
mingkee said:
The battery needs some initial "training".
Charge fully on the first and run it all the way down to nearly zero, and fully charge again.
DO NOT interrupt the initial charge.
Click to expand...
Click to collapse
dumbest thing wrote in this thread probably. You do not need to train or do a full charge. How come people still believe that nonsense in 2013 ??
Bagbug said:
dumbest thing wrote in this thread probably. You do not need to train or do a full charge. How come people still believe that nonsense in 2013 ??
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Click to collapse
:what:...XDA is for fun and for sharing; not for putting others down. Please be a little more respectful towards forum users when you post in the future. If you disagree with something then just explain so we can all learn together.
I am assuming the Note 8 has a lithium based battery. I couldn't confirm it though. The below link has some tips for how to care for different type of batteries. Useful reading.
http://www.techrepublic.com/blog/tablets/how-and-when-to-charge-your-tablet-battery/814
Sent from my GT-N5110 using xda app-developers app
Although the battery life is of concern to me, the fact it charges via a micro USB input rather than propriatry cable alieviates that worry (looking at you Apple). I dont think I go anywhere where there isnt a charger available thanks to the amount of devices that use them.
Bagbug said:
dumbest thing wrote in this thread probably. You do not need to train or do a full charge. How come people still believe that nonsense in 2013 ??
Click to expand...
Click to collapse
While his terminology might have been a bit clumsy, he is not completely incorrect.
The terminology of "training the battery" invokes the concepts of conditioning the old technology NiCad batteries to prevent memory effects, which are not a concern with Li ion batteries, which is what you seem to be referring to. Folks on XDA will often talk about conditioning or calibrating the battery, which can be a bit misleading (as often they have the behavior of the old NiCad batteries in mind when saying this).
However, it is true that the battery meter needs to be calibrated to be completely accurate. This calibration has no chemical effect on the battery itself (like it does with NiCad batteries) but simply effects how the current readings are displayed by the % battery meter on the device's screen. Without fully charging and draining the device, it doesn't have fully accurate "flags" associated the current to battery %.
http://batteryuniversity.com/learn/article/battery_calibration
Failure to calibrate the meter won't have a negative chemical effect, like failure to periodically condition a NiCad battery. And therefore it won't have an affect on the battery life. But properly calibrating will give you the most accurate % battery reading possible. The battery meter is not accurate out of the box, after a ROM flash, and an OTA may also reset the calibration.
As I've already mentioned in a previous response, I don't recommend draining the battery to shutoff. As doing so can lead to the battery no longer taking a charge, and the device no longer powering on. Its rare, but it does happen. Fully changing, then draining to 10% or so is enough. Full cycles are also not good for the long term life of the battery, although just doing it once every few months is still acceptable.
---------- Post added at 10:21 AM ---------- Previous post was at 10:07 AM ----------
kisrita said:
I am assuming the Note 8 has a lithium based battery. I couldn't confirm it though. The below link has some tips for how to care for different type of batteries. Useful reading.
http://www.techrepublic.com/blog/tablets/how-and-when-to-charge-your-tablet-battery/814
Click to expand...
Click to collapse
Pretty good link, thanks. And reinforces what I just said above.
Most any smartphone or tablet made in the past several years uses a Li ion battery. This confirms it: http://www.gsmarena.com/samsung_galaxy_note_8_0_n5100-5252.php
---------- Post added at 10:26 AM ---------- Previous post was at 10:21 AM ----------
hertsjoatmon said:
Although the battery life is of concern to me, the fact it charges via a micro USB input rather than propriatry cable alieviates that worry (looking at you Apple). I dont think I go anywhere where there isnt a charger available thanks to the amount of devices that use them.
Click to expand...
Click to collapse
The charger for the Note 8 is 2 Amps, while most MicroUSB chargers (at least for phones and other small devices) are 1 Amp. Although this varies, and there are other tablet chargers that are also 2 Amps; but these are far less common than phone charges that just about anyone with a phone that isn't Apple will have.
What this means is that the 1 Amp charger will charge the Note 8 very slowly. I tried mine on a 1 Amp charger just once so far. Left it on for maybe an hour, and the charge only increased by a few percent.
So yes, you can charge with most MicroUSB chargers in a pinch. But it will be slow.
hertsjoatmon said:
Although the battery life is of concern to me, the fact it charges via a micro USB input rather than propriatry cable alieviates that worry (looking at you Apple). I dont think I go anywhere where there isnt a charger available thanks to the amount of devices that use them.
Click to expand...
Click to collapse
Don't get the physical plug of a charger confuse you - I believe this tablet needs a 2amp output from the charger, meaning just because your charger has the same end connection, it won't necessarily help you charge this battery. I've had my users come to me thinking their devices are defective because they somehow started charging their tablet with their Bluetooth headset charger.
Someone also mentioned the black wallpaper that might help with the battery consumption - I believe that is only helpful on AMOLED screens that Samsung has used on other devices.
I'm really still on the fence on keeping it after I bought this - I'm coming from a GT 7.7 which had excellent build quality,screen, and battery life. The loss of the AMOLED screen for both graphics and battery efficiency is bothering me. I put both up side by side and feel disappointed that Samsung couldn't just make a JB updated 7.7 with new CPU, 2GB RAM, and stylus with the same design and beautiful Super AMOLED Plus screen. It's not even the price - but just feeling like I'm getting a somewhat inferior device (in a few but important aspects) from the 7.7, when it's supposed to be an upgrade to the older device.
I've seen the news about an upgrade to the 7.7 possibly coming, but will it come with the stylus that is also important to me and the other software enhancements from the Note 8?
Bagbug said:
dumbest thing wrote in this thread probably. You do not need to train or do a full charge. How come people still believe that nonsense in 2013 ??
Click to expand...
Click to collapse
Funny thing happened on mine.
The battery was VERY BAD the second day, but it could play live streaming for two hours when the battery was 1%. As soon as the tablet went off due to depleted battery, I charged it until it went all the way until the "full battery" came up.
After that, the battery is much better now, so don't say anything "dumb" or any nonsense because it works.
rEVOLVE said:
Someone also mentioned the black wallpaper that might help with the battery consumption - I believe that is only helpful on AMOLED screens
Click to expand...
Click to collapse
That is correct, having a black background does not effect battery life on LCD screens.
On AMOLED screens, black pixels are actually not emitting light (while pixels displaying other colors emit light), which is why a black background will cause less battery drain than other colors.
On an LCD, the liquid crystal layer that depicts the colors is not itself a source of light. Its lit from the back, and the light intensity of the backlight is the same regardless of what color is being displayed. How much light is blocked or let though by the liquid crystal layer varies depending on their alignment (what color is being displayed). But this doesn't affect how bright the backlight is, anymore than pulling a window blind makes the sun burn less hydrogen.
Speedy Gonzalez said:
Battery life is great here after 5 cycles running it to 1% and recharging full at first it was draining faster but now I can watch 4 hours of netflix and still have 25% left nice thing is that the battery charges superfast so no worries
Click to expand...
Click to collapse
Only four hours? My Nexus 7 averages about 10.5 hours of Netflix with 10% left. I wonder how other note 8's compare?
Sent from my Nexus 7 using xda premium

Any issue with your new Note 7? Read this...

Some complaints about the replaced Note 7 which have safe batteries, in South Korea.
http://www.androidheadlines.com/201...ery-issues-noted-by-galaxy-note-7-owners.html
What's your take on this? Anyone experiencing the same issues?
Updated:
Started a Poll on the subject. Please participate!
http://forum.xda-developers.com/poll.php?do=showresults&pollid=23806
Tnx!
Battery-gate has everyone paranoid.
This sounds like BS. When Samsung investigated 90+ cases of exploding batteries, it found that 26 reported cases were fraudulent scams - this was in the news today.
It sounds like the same ****.
andyahs said:
Battery-gate has everyone paranoid.
Click to expand...
Click to collapse
^^^^^
This.
I would believe the below from the article before I'd believe Samsung's stupid enough to make the same or similar mistake twice. I was worried about QC on the replacements considering how fast they're racing down the production line. Mine's perfect BTW. Any articles about Samsung because of what's happened is guaranteed click-bait. A Note 2 overheating on a plane made front page news with whatever (still to be determined) happened to it being tied back to the Note7 issue.
"The issues being reported in South Korea are related to minor errors with the mass production of the new units."​
I m not seeing anything near this. in fact my SD820 device runs better than the original did
cordell12 said:
I m not seeing anything near this. in fact my SD820 device runs better than the original did
Click to expand...
Click to collapse
Mine seems too also but I thought it was all in my head. It seems smoother and snappier for want of better words. My old phone would occasionally get choppy and stutter as if it was struggling with something in the background. The new one doesn't. It's on AT&T and the new phone's shipping s/w was the same as the old phone's updated s/w. Curious.
My s7 edge and note 7 (both exploding and non-exploding versions) have always had times where they charge slower than they discharge. (Waze + Pandora when it is super sunny, so 100% brightness. Even on QC2.0.)
The new note7 (and/or new firmware) pops up a warning to say as much. The S7E had an overheat warning that came up occasionally in similar conditions (even air-conditioned, DC summer is warm..)
I think the only difference is the notification that its happening, which is nicer than discovering after a drive that you have been losing power the whole time.
I'm experiencing the very slow charging issue. In fact when I was watching a movie while fast charging it was losing charge!?
Sent from my SM-N930V using Tapatalk
I have experimented the same thing, actually ending with less batt while using and charging with other devices, so, this happening with the note 7 indicates nothing wrong with the batt
Customers in South Korea who received a replacement device have reportedly complained the phone's battery is overheating and drains too quickly after use, according to a report by YTN, a TV network in the country.
nomailx said:
Some complaints about the replaced Note 7 which have safe batteries, in South Korea.
http://www.androidheadlines.com/201...ery-issues-noted-by-galaxy-note-7-owners.html
What's your take on this? Anyone experiencing the same issues?
Click to expand...
Click to collapse
Fast charging does not seem to want to work on my new one, with stock charger brick and cable. I am hoping I don't have to go BACK to TMo and get another new phone.
my replacement seems identical to my original, same charge speed, same discharge speed.
as for the people saying about watching movies and such and the battery ending up lower, that is normal, if you are running the screen and charging not only does the battery get warm, so does the CPU so the phone will start to throttle the charging. I've had phones in the past that refused to charge once the CPU got above a certain temperature. this is just people being paranoid or looking for a way to get money as mentioned above with the fake tales of exploding batteries.
Disconn3ct said:
My s7 edge and note 7 have always had times where they charge slower than they discharge.
Click to expand...
Click to collapse
Odd. I use my Note7 (pre and post replacement) with Android Auto via USB. Android Auto really puts a load on the phone. Even off the wimpy output from my car's USB port the phone never loses charge and frequently gains it. My previous Note5 was the opposite. It would stay even most of the time but would lose charge on occasion. The only difference between the two scenarios is I got a Orange-E 12" Type C USB cable to use with my Note7. So my experience is different than yours.
I suspect the screen is the big drain. 100% brightness is vicious. Isn't the screen off for android auto?
Things it's usually doing when it drains (starting from 70% or so) :
Overheating (direct sun, no ac pointed at dash or top/doors off)
BT music streaming + wear
GPS
100% brightness
QC2 (aukey car charger)
Even without overheating that combo usually only gains me about 5% over 30 minutes.
Unrelated, but without getting too far off topic is AA worth the jump? (~900USD if I want my steering wheel controls and stuff)
Sent from my SM-N930T using Tapatalk
Disconn3ct said:
I suspect the screen is the big drain. 100% brightness is vicious. Isn't the screen off for android auto?
Click to expand...
Click to collapse
Yep. When in use and the display is on its black with the Android Auto logo. But the phone's still using all its radios and if navigating pushing data to an 8" display so the phone's definitely under load. I have a Samsung Fast Charge car adapter but the problem with Android Auto is it doesn't let you connect by BT so the car's USB power output is all you get. But as a comparison under the exact same conditions the Note7 definitely either drains less or gets more power than my previous Note5 and both phones are/were configured identically.
BarryH_GEG said:
Yep. When in use and the display is on its black with the Android Auto logo. But the phone's still using all its radios and if navigating pushing data to an 8" display so the phone's definitely under load. I have a Samsung Fast Charge car adapter but the problem with Android Auto is it doesn't let you connect by BT so the car's USB power output is all you get. But as a comparison under the exact same conditions the Note7 definitely either drains less or gets more power than my previous Note5 and both phones are/were configured identically.
Click to expand...
Click to collapse
A black screen with amoled means the only pixels lighting up are the ones in use. The screen itself is a massive drain so the more pixels are lit up, the more the juice is drained from the battery. That's why AOD doesn't kill the battery fast.
Sent from my SM-G935T using Tapatalk
Ive used a USB multimeter on both my old and new note7.
No matter what, old or new note7, the charging rate gets cut exactly in half when charging with the screen on. This happens when using a quickcharger or a normal 2.4a 5v charger.
So if you want full speed charging the screen needs to be OFF.
Sent from my SM-N930T using Tapatalk
On my replacement Note 7 I noticed that if you are doing allot with the phone, it still gets hot, the battery does take a little longer to charge with both the Samsung charger that came with the phone and an Anker IQ 2.0 / 3.0 charger. The phone does seem a little snappier/faster though.
I just want a removable battery to end all this bull * and I will pick the battery I want to power my phone.
Snowleopard1900 said:
On my replacement Note 7 I noticed that if you are doing allot with the phone, it still gets hot, the battery does take a little longer to charge with both the Samsung charger that came with the phone and an Anker IQ 2.0 / 3.0 charger. The phone does seem a little snappier/faster though.
I just want a removable battery to end all this bull * and I will pick the battery I want to power my phone.
Click to expand...
Click to collapse
The biggest advantage for the integrated battery is that the unit is completely sealed from water.
Sent from my SM-G935T using Tapatalk
pyraxiate said:
The biggest advantage for the integrated battery is that the unit is completely sealed from water.
Sent from my SM-G935T using Tapatalk
Click to expand...
Click to collapse
I beg to differ, because they have that wireless backpac battery that is completely sealed from water for the Note 7. The purpose of the permanently installed battery is for the NSA to track people since the battery cannot be removed from the phone.

Best way to use battery mods...

So I am curious how people are using their battery mods? I have a Tumi that came with my phone (swappa). I am grateful to have it though I realize it may be unneeded with the Z play. I was surprise the first time I used it to notice the phone does not sleep with the battery mod on. Is this normal? It correctly kept it at 80% for most of the day but I believe it probably wasted quite a bit of energy doing it.
Another thing I was surprised at was how HOT the MZP got when I charged it with the turbo charger. It was fast! I am curious at what cost this speed comes at. I am tempted to leave the battery mod on and charge wirelessly over night. This would be a much slower charge and possibly better for the phone's battery. I have had bad luck with batteries going bad and I would like to care for this one the best way possible. Would this be be better than just running a turbo charge for an hour each morning before leaving the house? I expect the phone will last the day without the battery mod without problems.
Anyway... I am curious to hear how others are managing their battery and using the battery mods in you have one. I am sure I can learn a thing or two. Also, any research on if turbo-charging decreases the life of the battery? I know they are designed for it, but they are also designed to last a little over a year. Moto won't be upset if I have to buy a new phone in two years. Thanks for the conversation!
Despite of what the research articles on Internet says, I have stopped plugging in my devices overnight on regular basis after I have had my share of bad luck with swollen batteries. I don't have a battery mod for my z play but I try to care for my battery as much as possible. Since phone gets charged in less than 2 hours with turbo charger, I generally charge it in day time or before going to bed. If I am at home and I am not in a hurry, I use a normal charger to charge my phone. It's well known that heat the known enemy of batteries and whenever I plug in turbo charger, my phone gets hot. Highest is 42 degrees only though ( ambient environments plays a role). As summers are approaching here, I simply switch on the fan whenever I charge using turbo charger.
Though turbo chargers are designed to charge fast acconpnained by the compatible chipset, I highly doubt that companies had some real progress in lithium batteries and they are not meant to be tinkled like that so I am a bit sckeptical regarding long term battery health when constantly used with turbo chargers.
Sent from my XT1635-02 using Tapatalk

Q: Is the HTC 10 more power hungry than the HTC One M8?

Having recently acquired an HTC 10 (in excellent condition and no critical battery problem, like sudden shutdown/boot-looping), I've spent the last couple of days testing out the battery performance. While the HTC battery diagnostics scored disappointingly low (69%), the dumpsys batteryproperties showed good results and battery health apps have given a green light. Overall, there's very little power consumption when the phone is idle and WiFi is off. But by casual observation it seems like the battery charge level drops a little faster on my HTC 10 when idle with WiFi on, and when simply doing configurations/customization (screen on). I haven't been able to test voice call performance yet as I'm waiting for the GSM SIM card from my carrier. When the HTC 10 has WiFi off and phone isn't used overnight, battery percentage drops only a few points.
So I'm wondering about the hardware of the HTC 10, and if there's anything about it that's inherently more power hungry than on previous HTC phones (like the M9 or M8).
Screens - 10 has S-LCD 5 (versus S-LCD 3) and much larger resolution (1440 x 2560 pixels, 565ppi). Does an S-LCD 5 screen inherently consume more power when compared to S-LCD 3 (1080 x 1920 pixels, 441ppi) at same brightness level, or is it also refined to maintain same battery power draw?
Processors - 10 has Snapdragon 820 MSM8996 with Adreno 530 graphics, whereas M8 has Snapdragon 801 Adreno 330. Does the more powerful processor also mean more battery consumption per processing instruction set, or is it allegedly just as efficient? Qualcomm claims "With new architectures that enables more powerful apps with less battery drain," but I wonder how that plays out when utilized in an actual cell phone (versus laboratory tests).
Batteries - 10 has 3000 mAh, while M8 has 2600 mAh, but HTC runtime claims for calls and standby are way too high to believe. I'm expecting both HTC 10 and M8 should have about the same battery life performance.
So for those folks who have had previous HTC phones and currently the HTC 10 with a good condition battery, have you seen any efficiency improvement, none, or a decrease?
cytherian said:
Having recently acquired an HTC 10 (in excellent condition and no critical battery problem, like sudden shutdown/boot-looping), I've spent the last couple of days testing out the battery performance. While the HTC battery diagnostics scored disappointingly low (69%), the dumpsys batteryproperties showed good results and battery health apps have given a green light. Overall, there's very little power consumption when the phone is idle and WiFi is off. But by casual observation it seems like the battery charge level drops a little faster on my HTC 10 when idle with WiFi on, and when simply doing configurations/customization (screen on). I haven't been able to test voice call performance yet as I'm waiting for the GSM SIM card from my carrier. When the HTC 10 has WiFi off and phone isn't used overnight, battery percentage drops only a few points.
So I'm wondering about the hardware of the HTC 10, and if there's anything about it that's inherently more power hungry than on previous HTC phones (like the M9 or M8).
Screens - 10 has S-LCD 5 (versus S-LCD 3) and much larger resolution (1440 x 2560 pixels, 565ppi). Does an S-LCD 5 screen inherently consume more power when compared to S-LCD 3 (1080 x 1920 pixels, 441ppi) at same brightness level, or is it also refined to maintain same battery power draw?
Processors - 10 has Snapdragon 820 MSM8996 with Adreno 530 graphics, whereas M8 has Snapdragon 801 Adreno 330. Does the more powerful processor also mean more battery consumption per processing instruction set, or is it allegedly just as efficient? Qualcomm claims "With new architectures that enables more powerful apps with less battery drain," but I wonder how that plays out when utilized in an actual cell phone (versus laboratory tests).
Batteries - 10 has 3000 mAh, while M8 has 2600 mAh, but HTC runtime claims for calls and standby are way too high to believe. I'm expecting both HTC 10 and M8 should have about the same battery life performance.
So for those folks who have had previous HTC phones and currently the HTC 10 with a good condition battery, have you seen any efficiency improvement, none, or a decrease?
Click to expand...
Click to collapse
I have both devices. Just recently also picked up a mint condition 10. The battery is concerning on the 10 compared to the M8 in terms of effiiciency, and you'll find lots of threads here in the 10 forums here about the battery. From what I've read so far, it seems the best battery life was when the 10 was on Marshmallow because one of the 820 cores was being underclocked. Then HTC released the full power of the 820 chipset on Nougat, and the battery started to take a dive. Now in its current state on Oreo, it appears about the same as Nougat, or possibly slightly worse. I've only read a few cases where people have reported better battery on Oreo than Nougat or Marshmallow. I can say that on my M8 my screen on time still last me about 4-5 hours after having the device since 2014, where as the 10, I might get around 3-3 1/2 hours if I'm lucky. Yours might be different, as we all use our devices differently in what we do with them.
I haven't unlocked my device yet to try to go back to Nougat. Something I will probably do when I have more time.
I still love the 10 and think its a great device. Last metal HTC phone with a headphone jack! I'll take it and keep it MINT!!
gustav30 said:
I have both devices. Just recently also picked up a mint condition 10. The battery is concerning on the 10 compared to the M8 in terms of effiiciency, and you'll find lots of threads here in the 10 forums here about the battery. From what I've read so far, it seems the best battery life was when the 10 was on Marshmallow because one of the 820 cores was being underclocked. Then HTC released the full power of the 820 chipset on Nougat, and the battery started to take a dive. Now in its current state on Oreo, it appears about the same as Nougat, or possibly slightly worse. I've only read a few cases where people have reported better battery on Oreo than Nougat or Marshmallow. I can say that on my M8 my screen on time still last me about 4-5 hours after having the device since 2014, where as the 10, I might get around 3-3 1/2 hours if I'm lucky. Yours might be different, as we all use our devices differently in what we do with them.
I haven't unlocked my device yet to try to go back to Nougat. Something I will probably do when I have more time.
I still love the 10 and think its a great device. Last metal HTC phone with a headphone jack! I'll take it and keep it MINT!!
Click to expand...
Click to collapse
Good to hear about your experience, gustav. You make an excellent point about the 820 cores. I'd seen someone else post about their HTC 10 and they revised the kernel to XElemental, and kept the rest stock. This provides direct access to the CPU and GPU and you can under clock them. This sounds like it may be the way to go, if planning to stick with the HTC 10 for the long haul.
Unfortunately for me... that dreaded battery problem just reared its ugly head, again. It happened right away with the first HTC 10 I got, so I returned it and got my money back. The phone I just got a few days ago is in near mint condition and I let the battery level drop all the way down to 7% before recharging without any unexpected shutdown or boot looping. I figured I was in the clear. WRONG. This morning it was at 22%... and before I got around to plugging it in I was spending a few minutes checking notifications when SHUTDOWN occurred without warning and boot looping after. Couldn't stop it except by plugging in... which showed battery level at 1%. Go figure. I'm now in the process of recharging it fully with the phone off, and then I'll do the 3 button hold-down for 2 minutes, charge back up, reboot and charge, reboot and charge until I see a sustained 100%. Hopefully that will cure the problem for the near term. Long term, I'll probably just have to bite the bullet and change the battery. I never go S-OFF with a newly acquired phone, preferring to get fully acclimated to it for a while. But this time, maybe I'll just have to go ahead and bite the bullet. There's no other phone out there at this resale price point that fits the bill for me. HTC 10 is it. Somehow I've got to make this work.
cytherian said:
Good to hear about your experience, gustav. You make an excellent point about the 820 cores. I'd seen someone else post about their HTC 10 and they revised the kernel to XElemental, and kept the rest stock. This provides direct access to the CPU and GPU and you can under clock them. This sounds like it may be the way to go, if planning to stick with the HTC 10 for the long haul.
Unfortunately for me... that dreaded battery problem just reared its ugly head, again. It happened right away with the first HTC 10 I got, so I returned it and got my money back. The phone I just got a few days ago is in near mint condition and I let the battery level drop all the way down to 7% before recharging without any unexpected shutdown or boot looping. I figured I was in the clear. WRONG. This morning it was at 22%... and before I got around to plugging it in I was spending a few minutes checking notifications when SHUTDOWN occurred without warning and boot looping after. Couldn't stop it except by plugging in... which showed battery level at 1%. Go figure. I'm now in the process of recharging it fully with the phone off, and then I'll do the 3 button hold-down for 2 minutes, charge back up, reboot and charge, reboot and charge until I see a sustained 100%. Hopefully that will cure the problem for the near term. Long term, I'll probably just have to bite the bullet and change the battery. I never go S-OFF with a newly acquired phone, preferring to get fully acclimated to it for a while. But this time, maybe I'll just have to go ahead and bite the bullet. There's no other phone out there at this resale price point that fits the bill for me. HTC 10 is it. Somehow I've got to make this work.
Click to expand...
Click to collapse
You can also try the HTC battery test. Its in one of the threads around here. But essentially if the phone loses 30% during the HTC battery test, in airplane mode, screen on, full brightness, they will replace the battery at no cost. When I charged my 10 to 100%, I did run that test and when the test was done, it was at 85%. So for me, that was OK. I've also been lucky in the sense that I can let my phone go all the way down to 1%, before dying and no bootloop.
But getting back to your initial point, why is my 4 year old HTC one m8 still have 5 hours of screen on time? I mean talk about a champ! That's why I feel its more software optimization than anything else in HTCs implementation of Oreo. I mean I get better battery life when I turn on mobile data, than Wi-fi at home. I can't figure that out. My number one battery killer when looking at GSAM battery report is Kernel (Android OS) at 18%.
I like to ride stock free for a while too before unlocking/rooting, and honestly besides adaway, phones today haven't gotten to the point that rooting is really no longer needed in most cases. But I guess, in this case, first thing I'd do is flash LeeDroid rom along with Flair's ElementalX kernel.
gustav30 said:
You can also try the HTC battery test. Its in one of the threads around here. But essentially if the phone loses 30% during the HTC battery test, in airplane mode, screen on, full brightness, they will replace the battery at no cost. When I charged my 10 to 100%, I did run that test and when the test was done, it was at 85%. So for me, that was OK. I've also been lucky in the sense that I can let my phone go all the way down to 1%, before dying and no bootloop.
But getting back to your initial point, why is my 4 year old HTC one m8 still have 5 hours of screen on time? I mean talk about a champ! That's why I feel its more software optimization than anything else in HTCs implementation of Oreo. I mean I get better battery life when I turn on mobile data, than Wi-fi at home. I can't figure that out. My number one battery killer when looking at GSAM battery report is Kernel (Android OS) at 18%.
I like to ride stock free for a while too before unlocking/rooting, and honestly besides adaway, phones today haven't gotten to the point that rooting is really no longer needed in most cases. But I guess, in this case, first thing I'd do is flash LeeDroid rom along with Flair's ElementalX kernel.
Click to expand...
Click to collapse
Is that right about the HTC battery replacement policy, even if the phone isn't under warranty any longer? Because I don't think mine is... Interesting what you said about the WiFi usage. In my test, I left WiFi running... and it wasn't burning up battery life all that badly. That screen will soak it up if you've got it on full brightness. It's VERY bright, more so than on the M8. Anyway, I did do the battery test when I first got it and it failed... dropped to 69% in 1 hour. I'm going to have to run it again and then take a screen shot at the results screen so I can prove to HTC that it fails. After that, I fully charged it and then let it run down just to see how it performed and it wasn't bad... I figured maybe the test wasn't accurate. The adb "dumpsys batteryproperties" shows a healthy battery, full charge 3049000. This whole battery debacle is confusing... I can't quite figure out if the battery is at fault or if it's a firmware glitch that can't manage the battery indicators properly. Some people claimed they completely avoided this by going to LineageOS or LeeDroid. But then I saw someone say they went back to Nougat and it didn't help. Maybe the problem lies in the kernel?
About the One M8, same thing for me. I even got my phone refurbished a little over 2.5 years ago and have been running it non-stop since then. I can go almost 4 full days in standby until I'd have to recharge it and the active screen time still seems very good. My only gripe right now with it is the headphone jack, which developed a problem where it won't hold the plug in very well (tends to pop out, so I have to hold it in place). If it didn't have this issue and the camera was 12mp, I'd stick with it. I love this phone and you can't beat those dual facing speakers (best sounding phone ever). But I have to say... screen wise the HTC 10 looks richer. And no wonder, being 565ppi versus 441ppi on the M8. I like those few extra millimeters in length you get on the 10, while the form factor is almost identical to the M8.
cytherian said:
Is that right about the HTC battery replacement policy, even if the phone isn't under warranty any longer? Because I don't think mine is... Interesting what you said about the WiFi usage. In my test, I left WiFi running... and it wasn't burning up battery life all that badly. That screen will soak it up if you've got it on full brightness. It's VERY bright, more so than on the M8. Anyway, I did do the battery test when I first got it and it failed... dropped to 69% in 1 hour. I'm going to have to run it again and then take a screen shot at the results screen so I can prove to HTC that it fails. After that, I fully charged it and then let it run down just to see how it performed and it wasn't bad... I figured maybe the test wasn't accurate. The adb "dumpsys batteryproperties" shows a healthy battery, full charge 3049000. This whole battery debacle is confusing... I can't quite figure out if the battery is at fault or if it's a firmware glitch that can't manage the battery indicators properly. Some people claimed they completely avoided this by going to LineageOS or LeeDroid. But then I saw someone say they went back to Nougat and it didn't help. Maybe the problem lies in the kernel?
About the One M8, same thing for me. I even got my phone refurbished a little over 2.5 years ago and have been running it non-stop since then. I can go almost 4 full days in standby until I'd have to recharge it and the active screen time still seems very good. My only gripe right now with it is the headphone jack, which developed a problem where it won't hold the plug in very well (tends to pop out, so I have to hold it in place). If it didn't have this issue and the camera was 12mp, I'd stick with it. I love this phone and you can't beat those dual facing speakers (best sounding phone ever). But I have to say... screen wise the HTC 10 looks richer. And no wonder, being 565ppi versus 441ppi on the M8. I like those few extra millimeters in length you get on the 10, while the form factor is almost identical to the M8.
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Not sure if they will still do it under warranty. I know with my LG devices, I've been lucky with warranty fixes for things when the warranty is over. I'd hope HTC would help if your phone was at 100% and dropped to 69% during the battery test. Maybe hit them up on twitter with a screenshot or something and see if they can come through for you that way...A little social media prodding is good, especially as they are getting ready to announce their U12+. You really have nothing to lose by asking.
The only other thing you can do is the typical HTC 1st level support stuff. Wipe the device with a factory reset, go into stock recovery and clear caches. I know those are probably worthless, but I guess something you can try while you remain unrooted.
Same with me on the likes of the 10. I like the 5.2 screen. I also have a LG V20 and V10. They are good devices, but rather large, and every now and then I like to to get back to HTC devices. Best design and Sense experience. But I will say this in regards to the V20. That is also on Nougat and on the 820 chipset. That thing I can leave for probably 2 or 3 days, and battery drain would be at like maybe 10%. LG really knows how to implement great standby time. When I actively use the device, I'd say I get a full day out of it and even then I'm not really concerned if I'm not near a charger. With the HTC 10, I have to think before I leave the house if I have a USB-c cable!
I had a chat with HTC customer support. They sure don't know how to manage their reps... I spent about an hour with one who forced me to walk through the same mundane troubleshooting steps I'd already done, so I followed along to satisfy them. Now I'm supposed to use the phone all day and "see if it works OK." Anyway, I inquired about the battery and they said they only do it under warranty. Otherwise I'd have to pay $249. Ha! Right. I paid $150 for the phone. Anyway, if the shutdown happens again, I may just try to roll the phone back to stock and prevent Oreo from being pushed onto it... see if it still happens. I'd really like to definitively isolate the cause -- can't stand letting mysteries like this go unchecked. I guess that's part of why I was so good in software quality assurance back in my earlier career.
Speaking of LG, I'd actually given the G5 a long look. I really like how it still has a replaceable battery. But it fell short in some other specs, unfortunately. I'm hooked on Sense... hard to use anything else, because it feels exactly how I like a smartphone interface.
gustav30 said:
Not sure if they will still do it under warranty. I know with my LG devices, I've been lucky with warranty fixes for things when the warranty is over. I'd hope HTC would help if your phone was at 100% and dropped to 69% during the battery test. Maybe hit them up on twitter with a screenshot or something and see if they can come through for you that way...A little social media prodding is good, especially as they are getting ready to announce their U12+. You really have nothing to lose by asking.
The only other thing you can do is the typical HTC 1st level support stuff. Wipe the device with a factory reset, go into stock recovery and clear caches. I know those are probably worthless, but I guess something you can try while you remain unrooted.
Same with me on the likes of the 10. I like the 5.2 screen. I also have a LG V20 and V10. They are good devices, but rather large, and every now and then I like to to get back to HTC devices. Best design and Sense experience. But I will say this in regards to the V20. That is also on Nougat and on the 820 chipset. That thing I can leave for probably 2 or 3 days, and battery drain would be at like maybe 10%. LG really knows how to implement great standby time. When I actively use the device, I'd say I get a full day out of it and even then I'm not really concerned if I'm not near a charger. With the HTC 10, I have to think before I leave the house if I have a USB-c cable!
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$250 is crazy for a battery in a phone from 2 years ago. I paid $205 for my red 10. Man, they've gotten stingier over the years. I guess not making any money year after year doesn't help. I remember sending in my fully s-off M8 after my warranty was up to replace the camera glass on the back and they did, no questions asked.
LG hardware is good. They implement some nice camera hardware and audio. For me audio is my first priority as I am a musician and listen to alot of music. So the DACs in their V series is why I have them. But I do through all the ported HTC sense software on them.
Sent from my HTC 10 using Tapatalk
Interesting -- I didn't know you could port HTC Sense software onto an LG phone. The V20 looks nice and very comparable to the HTC 10, although a bit bigger form factor than I'd like. What do you think of the hTc 10 DAC?
EDIT:
Well, I have a little bit of good news about my phone. I did a slow charge back up to 100%. I then pressed and held the volume buttons and power button simultaneously for about 2 minutes. Upon release, battery level was 89%. I charged it back up to 100% and repeated. Next battery level was 92%. Repeated, and then battery level was 97%. From there I just charged normally back to 100% and let it gradually drain down from there. When I hit 25%, I put the screen on maximum and streamed YouTube videos. The battery level began to drop about 2% after each video. I got to 17%, stopped, and rebooted. 16% and still no shutdown and boot looping. After it got below 15% I got a low battery warning, and still no shut down. At 12% it was still running.
I have a new (to me) theory that what may be happening is some kind of firmware issue, where the "adaptive" monitoring of the battery becomes flawed and thus the percentage battery level becomes misinterpreted. That's why there's that auto-shut down. Because the battery REALLY IS LOW, but the Android OS doesn't know it. And then the battery's safety circuitry kicks in and aborts power to the phone. Where it all goes wrong is when the battery becomes a bit worn after a year or so of use. The firmware starts to collect faulty battery status data and then erroneously report the battery level. THIS IS WHY, the phone tries to "boot loop" after the shutdown because it still has faulty battery data. It keeps trying, but the battery says "NO"... and denies sufficient power to complete. And then when you plug in the phone, the battery won't stop the phone from booting up because now the phone has sufficient power, so it completes. Only somehow at that moment, the firmware finally shows the right battery level. 1%.
What cemented my theory was when I plugged my phone back in to my A/C powered USB charger, but this time I did not use the Quick Charge 3.0 port. I used a normal port. And within about 30 minutes, I check the phone and it's showing a 40% power level. That's too fast. From 12%, it should take about 2~3 full hours to charge back up to 100%, and in about 1 hour with Quick Charge. What it suggests to me is that the firmware is still screwing up the battery power level interpretation.
So ultimately this problem isn't the battery. Batteries do wear down, and that's a fact. But from my observations I think it's the firmware in the HTC 10 that's screwing up in it's sensing of the actual battery power level. It gets "out of sync" and thus, this dreaded shutdown starts happening, anywhere from 20~50% power level, maybe more. It may be the micro code in the kernel... which is why some people who switched to a different kernel aren't suffering this problem.
EDIT: By the way, I've been able to consistently repeat the charging issue. When the screen reported 100%, I pressed and held the 3 buttons to boot loop the phone about 4 times (not a full 2 minutes) and after I let go with the phone in a power-off state, the battery percent jumped down to 89%. So, it may just come down to this little extra effort in the full charging of the phone. A bit of an inconvenience... but I'd rather do this than have to replace the battery at this point.
cytherian said:
Interesting -- I didn't know you could port HTC Sense software onto an LG phone. The V20 looks nice and very comparable to the HTC 10, although a bit bigger form factor than I'd like. What do you think of the hTc 10 DAC?
EDIT:
Well, I have a little bit of good news about my phone. I did a slow charge back up to 100%. I then pressed and held the volume buttons and power button simultaneously for about 2 minutes. Upon release, battery level was 89%. I charged it back up to 100% and repeated. Next battery level was 92%. Repeated, and then battery level was 97%. From there I just charged normally back to 100% and let it gradually drain down from there. When I hit 25%, I put the screen on maximum and streamed YouTube videos. The battery level began to drop about 2% after each video. I got to 17%, stopped, and rebooted. 16% and still no shutdown and boot looping. After it got below 15% I got a low battery warning, and still no shut down. At 12% it was still running.
I have a new (to me) theory that what may be happening is some kind of firmware issue, where the "adaptive" monitoring of the battery becomes flawed and thus the percentage battery level becomes misinterpreted. That's why there's that auto-shut down. Because the battery REALLY IS LOW, but the Android OS doesn't know it. And then the battery's safety circuitry kicks in and aborts power to the phone. Where it all goes wrong is when the battery becomes a bit worn after a year or so of use. The firmware starts to collect faulty battery status data and then erroneously report the battery level. THIS IS WHY, the phone tries to "boot loop" after the shutdown because it still has faulty battery data. It keeps trying, but the battery says "NO"... and denies sufficient power to complete. And then when you plug in the phone, the battery won't stop the phone from booting up because now the phone has sufficient power, so it completes. Only somehow at that moment, the firmware finally shows the right battery level. 1%.
What cemented my theory was when I plugged my phone back in to my A/C powered USB charger, but this time I did not use the Quick Charge 3.0 port. I used a normal port. And within about 30 minutes, I check the phone and it's showing a 40% power level. That's too fast. From 12%, it should take about 2~3 full hours to charge back up to 100%, and in about 1 hour with Quick Charge. What it suggests to me is that the firmware is still screwing up the battery power level interpretation.
So ultimately this problem isn't the battery. Batteries do wear down, and that's a fact. But from my observations I think it's the firmware in the HTC 10 that's screwing up in it's sensing of the actual battery power level. It gets "out of sync" and thus, this dreaded shutdown starts happening, anywhere from 20~50% power level, maybe more. It may be the micro code in the kernel... which is why some people who switched to a different kernel aren't suffering this problem.
EDIT: By the way, I've been able to consistently repeat the charging issue. When the screen reported 100%, I pressed and held the 3 buttons to boot loop the phone about 4 times (not a full 2 minutes) and after I let go with the phone in a power-off state, the battery percent jumped down to 89%. So, it may just come down to this little extra effort in the full charging of the phone. A bit of an inconvenience... but I'd rather do this than have to replace the battery at this point.
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Click to collapse
The DAC on the HTC 10 is good. I think they are using the Snapdragon DAC, just that they optimized it along with Qualcom from what I understand. However the headphone amp on the 10 is really good, hence that delivers some outstanding sound. I can't make the determination if I like it more than my V10/V20s, but it certainly holds its own and is better than our M8s. Although even the M8 had a great headphone amp too. Truly that is the first step in getting better sound out of earbuds/headphones is the amp. You need a good amp to drive high impedance headphones.
I'm trying that battery calibration that you did. What is interesting is that I had the phone charged to 100%. Held down the the buttons for 2 minutes, rebooted, and the phone was at 78%. So now I'm charging it back up and will do the same thing.
gustav30 said:
The DAC on the HTC 10 is good. I think they are using the Snapdragon DAC, just that they optimized it along with Qualcom from what I understand. However the headphone amp on the 10 is really good, hence that delivers some outstanding sound. I can't make the determination if I like it more than my V10/V20s, but it certainly holds its own and is better than our M8s. Although even the M8 had a great headphone amp too. Truly that is the first step in getting better sound out of earbuds/headphones is the amp. You need a good amp to drive high impedance headphones.
I'm trying that battery calibration that you did. What is interesting is that I had the phone charged to 100%. Held down the the buttons for 2 minutes, rebooted, and the phone was at 78%. So now I'm charging it back up and will do the same thing.
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Click to collapse
FYI... read up a bit on phone DAC's... and considering all the other factors (inherent "noise" from the phone, the earbuds/headphones, and source files at 320kbps, and of course environmental noise), it's a wash really. Unless you're using an supplementary amp directly out of the headphone jack. From what I'm reading, the best way to perceive a difference is if you're using your phone as a DAC direct to a home stereo system that provides greater amplification and of course nice large speakers.
The "calibration" somehow clears the O/S data on the battery state and refreshes it. Btw, don't even need 2 minutes, just about 5 cycles (you'll feel the vibration motor each time) is about it. Then charge up from there.
There is one other factor I forgot to mention, and that is lithium ion battery deep discharge sensitivity. You never want to deep discharge your battery. Battery protection circuitry is supposed to help with that, but it can be taxed. And if it happens enough times, it can damage the battery composition. And that may be another reason for many of these reported battery problems. People have unknowingly had their batteries reach a low discharge state enough times to damage the composition, all because the battery management firmware was overestimating battery power levels.

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