Develop Bugs

Battery doesn't last long. should i change it?

Ok, my battery is weird it doesnt last long. it dropped from abut 95% to 70% over night, with checking email every 30 minutes with k9 and the mail app every 4 hours. My phone doesn't last very long either, I haven't tested it fully. I always keep charging it, when im in the house.
I bought it from T-Mobile and i could swap it. Should I?
Jason

Might be worth it, I have Friendstream updating default setting, Googlemail (although it's push) on at all times, browsing a fair bit (on mobile net and WiFi) and a few calls and it last 2 days-ish...I'm using a generic Desire on latest FW

Mine's the same. I didn't think it would be worse than my old BB Bold for battery life, but it really is very poor. I don't think you have a fault, it's just the way it is.
I wondered about closing background apps but I've read that having them open doesn't impact battery life. I do have a few background things going on though that will affect it, so maybe I need to consider if I really need them or not (frequent email syncing, contacts/calendar syncs, etc.).

EddyOS said:
Might be worth it, I have Friendstream updating default setting, Googlemail (although it's push) on at all times, browsing a fair bit (on mobile net and WiFi) and a few calls and it last 2 days-ish...I'm using a generic Desire on latest FW
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Click to collapse
Have you put the phone down for long periods in-between uses, or have you spent a fair time writing emails or just playing with it? I've spent a fair time on mine but not constantly, and no more than I used to with my BB Bold. I used to writing emails constantly on my Bold and the battery would last a good day, but until I'm used to this keyboard I won't be doing that on my Desire.

So It won't make a difference if i swap it? I also didn't do the standard charge at the start. Couldn't resist playing with it. So It was on charge while playing with it. Could that make a difference?

I'm in work a lot and I'm not constantly on it - just check for emails/SMSs every hour or so so prob spends a lot of the time in standby. I'm on it more on the weekends but it still lasts well into day 2

sharp910sh said:
So It won't make a difference if i swap it? I also didn't do the standard charge at the start. Couldn't resist playing with it. So It was on charge while playing with it. Could that make a difference?
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Click to collapse
If it works otherwise then I doubt there is a fault that would cause the battery to run down but nothing else not to work.
Not charging the battery at the start is one of those things that some say makes a difference, other say it doesn't. With Lithium-Ion batteries I always thought they didn't need that initial charge, but I can't say for sure. Anyway, what might help is if you did a full charge then a complete discharge (use it until the phone turns off) then a full charge again. With older batteries at least, that tended to help them last longer.

There a a few threads on this alread here and on the Android Forums.
There is a problem where the phone when charged left on, only goes upto 98%. However the phone will soon drop to 90% and lower quickly, indicating the phone has not charged properly.
If you unplug and reconnect, it will go back to 100% but almost as quick as tying your laces, it will go from 100 to 98% and continue to drop.
It could be faulty batteries.
I was hoping the FW update would fix but it hasn't as I found out last nite.

Or should I just buy another battery?

I've been having similar issues,
I get much much better battery life without mobile networks on, and alot of application crashes/phone reboots to get it work like I expected.
Took some data:
1hr of phone in sleep mode w/ mobile internet on = 4% battery
1hr of phone in sleep mode w/out mob internet on = >1% battery
So I can get a good two days if I don't have any internet with moderate use, but about 16 hours with internet always on and moderate usage. If I really 'rag' it and use alot, I can get about 50% done in a few hours (not constant use either, just alot of google goggles mainly!)
This coupled with the crashes and reboot made me get an exchange, I'm just hoping it's better, and really hoping its not worse..
Wish me luck, I wish you all the same.

After couple weeks my original battery seems to last longer - I do with 1,5 days now (with some browsing, 3G, occasional GPS and bluetooth, weather & gmail sync, dl apps from market etc). So it might be true that after the initial couple weeks of usage and charging the battery performs much better.
Intrestingly T-Mobile promised to send me a new battery over a week ago. As it never arrived I called them and was told they dont have any... but they would credit my account with £20 to buy one. Today... I received an extra battery from T-Mobile!!! No idea what is going on - and if I still have that £20 credit in my account
I will give that new battery a loooong first charge, see if it helps.

what about the 3000 mAH batteries?
Are they any good and would it work for the Desire?
can be found at the htcdepot.com

jannen said:
After couple weeks my original battery seems to last longer - I do with 1,5 days now (with some browsing, 3G, occasional GPS and bluetooth, weather & gmail sync, dl apps from market etc). So it might be true that after the initial couple weeks of usage and charging the battery performs much better.
Intrestingly T-Mobile promised to send me a new battery over a week ago. As it never arrived I called them and was told they dont have any... but they would credit my account with £20 to buy one. Today... I received an extra battery from T-Mobile!!! No idea what is going on - and if I still have that £20 credit in my account
I will give that new battery a loooong first charge, see if it helps.
Click to expand...
Click to collapse
Won't help, once it's at 100% the charging will stop. There is no such thing as 'long charging' li-ion batteries or 'trickle charge' a li-ion battery.
You can try to do a full first charge (until the green light burns) and then fully discharge (until the phone goes off). Then fully charge again. This will calibrate the battery chip and make sure you see the correct percentage.
If battery life is still no good then it's because you use the phone too much. Read: constant weather updates, friendstream updates, push mail and other stuff that constantly use the mobile connection. Also turn off gps unless you need it.
Turning off those services and turning off the 'always on mobile connection' can double your battery life (read: standby time).
It's not something magical, it's completely normal. If you want the phone to do a lot, it will obviously use a lot of battery.
Just for the sake of it, put the phone in airplane mode. You will be amazed how long it will last.
It's the main problem with modern mobile devices. Battery usage and capacity are no longer in good balance. What we need is more compact batteries that have more capacity.
At the moment it's clearly a comprimise between battery size (thus capacity) and battery usage. It's up to you to see how much you want to comprimise.
And so far, with every HTC phone, after a few (radio rom) updates battery life increased.
And... what everyone seems to forget, when you first get your phone you will fiddle with it.. a lot.. And once you have it for like a week or two, you start using it differently. Usually ending up with better battery life!

Try to run it down to around 5-10% after each full charge, but don't let it go completely dead if you can avoid it. Do this a few times and you will notice an improvement. Plus of course, when the novelty wears off and you use it less the same will happen.
Back when I got my Touch HD it would only just last a day, but by the time I was on the upgrade path I could get 3 or 4 days out of it!

Just to confirm, I was a bit worried at first about the battery life of the Desire. The first 2 days I could only manage to get 7 / 8 hours out of it. When I turned data sync off at night, it still lost 40% of the battery .. doing absolutely nothing.
However as mentioned before, I'm now on day 6 and now I can easily get 36 hours of browsing / texting / calling 2 hours + / even playing occasionally games. At night, without data sync, it drops just 4%.
So if you're worried about your newly acquired Desire's battery sucks, It really needs some calibration. After a few days it'll work as you wish.

T-mob battery
Hmmm.. Not sure what T-mob is up to. They promised me a £20 credit to by a battery (they didnt have any in stock) then I received the battery in post. I called 150 and they confirmed the £20 credit is still there for the next bill...
I couldnt be happier with T-Mob! Besides this I got 100txt/100min, plus 60 min included to Eurasia, Internet and 40 free txt to Europe = all for £10 a month!
Now I just need a case for it... waiting for the PdAir one to come, had one for my Compact IV and loved it. Its the flip one that opens upwards not down, so wont mess with the hardware buttons.

sajcobitsj said:
Just to confirm, I was a bit worried at first about the battery life of the Desire. The first 2 days I could only manage to get 7 / 8 hours out of it. When I turned data sync off at night, it still lost 40% of the battery .. doing absolutely nothing.
However as mentioned before, I'm now on day 6 and now I can easily get 36 hours of browsing / texting / calling 2 hours + / even playing occasionally games. At night, without data sync, it drops just 4%.
So if you're worried about your newly acquired Desire's battery sucks, It really needs some calibration. After a few days it'll work as you wish.
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Click to collapse
I really hope that's the case...
I got my Desire on Tuesday, first use was on Wednesday.
Yesterday (Friday) I put the Desire into Airplane Mode - I deactived everything. Turned off WLAN, mobile Internet, Syncing off manually before I went into that mode, just to be sure. When I went to bed, I had 72% battery left. When I woke up...50%...seriously, what the f...?!?!
8 hours of doing absolutely nothing uses 22% battery?! It's really annoying at the moment, absoluetly unusuable unless I'm home and know I can plug it in any second. When I'm out, I don't even dare to use mobile Internet, because even without it it only lasts till I get home (no WLAN, no mobile internet, just using it as a "telephone"...).

Eggcake said:
I really hope that's the case...
I got my Desire on Tuesday, first use was on Wednesday.
Yesterday (Friday) I put the Desire into Airplane Mode - I deactived everything. Turned off WLAN, mobile Internet, Syncing off manually before I went into that mode, just to be sure. When I went to bed, I had 72% battery left. When I woke up...50%...seriously, what the f...?!?!
8 hours of doing absolutely nothing uses 22% battery?! It's really annoying at the moment, absoluetly unusuable unless I'm home and know I can plug it in any second. When I'm out, I don't even dare to use mobile Internet, because even without it it only lasts till I get home (no WLAN, no mobile internet, just using it as a "telephone"...).
Click to expand...
Click to collapse
You expect the phone to stay turned on without using any power? This isn't a dumb phone, it is running powerful components and 8 hours doing "nothing" is relatively long time and the power usage of keeping those components powered at idle levels is going to add up no matter what. If you can't bear to turn the phone off if you can't control your usage, carry a charger or battery you should have got a dumb phone.

Bear in mind that the full capacity of the battery won't be reached until several charge/discharge cycles have been done, especially when you are using the battery for the first time on a new phone or on a phone with updated firmware. I noticed this while flashing custom ROMs on a previous handset. I'm sure we will also notice improved battery performance when firmware updates become available.

I really hope that's the case...
I got my Desire on Tuesday, first use was on Wednesday.
Yesterday (Friday) I put the Desire into Airplane Mode - I d
Click to expand...
Click to collapse
You expect the phone to stay turned on without using any power? This isn't a dumb phone, it is running powerful components and 8 hours doing "nothing" is relatively long time and the power usage of keeping those components powered at idle levels is going to add up no matter what. If you can't bear to turn the phone off if you can't control your usage, carry a charger or battery you should have got a dumb phone.
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Click to collapse
So you wanna tell me 20% battery loss in 8hrs airplane mode is normal? I hope not.
Sent from my HTC Desire using Tapatalk

HTC HD7 , whopping 3.5 hours 3G usage on 50% charge today!

running Mango RTM:
today i changed my old sim card to a new one
the old one is a iphone 3G sim card ( smaller gold plate)
the new one ( seems bigger gold plate)
and i got this
6PM - 9PM on 50 % charge continousl surfing web on browser on 3G.
THis is something i never had even on nodo...
can someone explain?

anyway found something here which may explain it
http://forums.precentral.net/palm-pre-pre-plus/266015-micro-sim-causing-extra-battery-drain.html
seems my old sim which was used on the iphone 3G is trying to identify the HD7 as an iphone?

I'm confused...what are you asking?

How is this possible? Hd7 not supposed to last more than 3hours on full charge

Magpir said:
How is this possible? Hd7 not supposed to last more than 3hours on full charge
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I don't get it either... is this a sarcastic thread?
I don't have an HD7, but the phone I have usually lasts the entire day. Slightly less if I stream youtube for my 45 min commute to work.

I can easily do the test over Mango tomorrow.
I have HD7 with T-Mobile HSDPA.
But during the work i have done over my mango HD7, look like the HD7 has slightly more battery time after the firmware update from HTC, and also the new features / tweak from Mango.
I mean, when i was on Nodo, my Schubert usually died after about 8 hours of Light Surfing in class for research, and a little apps around it.
From 7h in the morning to 2, 2h30PM, and most of the time i could not finish my work before my phone died.
After Mango, i feel there are something really different with Nodo. School works increase by times, i do more searching stuffs on the phone than ever before, like 50% more, 3G like all the time, from IE, to Amazon Kindle, Adobe Reader... and my Schubert even last longer than Nodo Standard about 30-40 mins.
My settings almost are default, Remember Location = On, Push mail = On, Automatic Find Updates = On, Auto Update Social Network = on.
I will go out tomorrow and give a little more detail on Mango battery Juice.

Like Magpir said, it probably had more to do with switching SIM cards. Although Mango probably helped a little.
I saw the same when I switched cards. The guy who switched it out for me told me that the old cards were inefficient in staying locked on to the 3g network. My phone would continually switch between 3g and 2g which drains the battery much quicker.

I can generally get about 3.5 to 4 hours out of my Arrive over 3G and this is with streaming music. it all depends on the signal strength, if it's really strong the phonewont use any extra energy to decode the signals from the towers. if there is a weak signal or a busted tower then the phone will try its best to retain the signal and transfer data which can cause overheating and rapid battery drain. I can share my experience with this as the tower in my hometown's busted so my speeds are slow and my battery doesn't even last 2 hours in this case.

Not surprising really. Battery life on 7720.68 (HD7) improved significantly after using the built-in Connection Setup app. I saw this tip in another thread and can verify it worked on my HD7. Yesterday I went from 5:30am to 11pm on a single charge with exchange pushmail(as items arrive), wifi and bluetooth always on and 3G (Taiwan GSM), 30 minutes gps logging, 30 minutes web browsing, 60 minutes zune and 15 minutes talk time. Battery is stock and already 7-months old. MS & HTC got this one right -- I think WP7 has a very bright future. Cheers

My point is I was heavily using it, for 3 hours straight at 50% charge, surfing web and chatting on msn.
Also discovered that there is a flaw in the charging process, not sure if it's related to mango or the phone battery / hardware.
I noticed that after every full charge, I need to soft reset each time for the battery not to drain.

Anyway I tested the phone in different areas within a 5 km radius

lbp775 said:
Like Magpir said, it probably had more to do with switching SIM cards. Although Mango probably helped a little.
I saw the same when I switched cards. The guy who switched it out for me told me that the old cards were inefficient in staying locked on to the 3g network. My phone would continually switch between 3g and 2g which drains the battery much quicker.
Click to expand...
Click to collapse
which is why whenever u get a new phone , its always best to get a new sim card.

Magpir said:
which is why whenever u get a new phone , its always best to get a new sim card.
Click to expand...
Click to collapse
Hmm now I wonder if my SIM card has issues. I always believed that there is something wrong with the 2g to 3g switching.
At first I believed that it is just bad code by MS.
I tested it by traveling through half of the country and the battery died in just half a day.
I have also noticed that the Samsung Network app recognized one of my SIMs as a contract when it should be a pay as you go card. (it was originally a contract card)
Might head down to vodafone to get myself a new one.

I have my hd7 with an extra battery pack which is spposely make the phone last x2 more than normal and it only makes it through 8 hours a day most time and if am lucky it makes it to 10 hours.. Anyone knows why
Sent from my HD7} using XDA Windows Phone 7 App

oswald-josh said:
I have my hd7 with an extra battery pack which is spposely make the phone last x2 more than normal and it only makes it through 8 hours a day most time and if am lucky it makes it to 10 hours.. Anyone knows why
Sent from my HD7} using XDA Windows Phone 7 App
Click to expand...
Click to collapse
Change yr sim card......

interesting.. i wonder how long your battery will last.
im not sure about the HD7, but my optimus 7 comes with Li-ion batteries. the way you use ur phone is killing it.
dont get me wrong, its alright to use it that way, but the thing about li-ion batteries, once you drain it, you can never get it back to 100% charge.
Li-Ion requires frequent charging, even if its only half. NEVER NEVER let it go to dangerous levels, you may not be able to recover back to 100% charge.
search the net and search for the characteristics of li-ion batteries.
there is a popular believe among malaysians & singaporean gadget users, (not sure about people elsewhere), that it is better to drain the battery before charging (some earlier siemens phones have the option to 'drain' battery before charging). That is meant for NiMH batteries to get rid of the 'memory effect'.
Li-ion batteries does not have the memory effect.
charge your phone more frequently, especially with your usage. you will gain more from the battery..

vash_h said:
interesting.. i wonder how long your battery will last.
im not sure about the HD7, but my optimus 7 comes with Li-ion batteries. the way you use ur phone is killing it.
dont get me wrong, its alright to use it that way, but the thing about li-ion batteries, once you drain it, you can never get it back to 100% charge.
Li-Ion requires frequent charging, even if its only half. NEVER NEVER let it go to dangerous levels, you may not be able to recover back to 100% charge.
search the net and search for the characteristics of li-ion batteries.
there is a popular believe among malaysians & singaporean gadget users, (not sure about people elsewhere), that it is better to drain the battery before charging (some earlier siemens phones have the option to 'drain' battery before charging). That is meant for NiMH batteries to get rid of the 'memory effect'.
Li-ion batteries does not have the memory effect.
charge your phone more frequently, especially with your usage. you will gain more from the battery..
Click to expand...
Click to collapse
u can drain the battery to empty but u must immediately recharge it...
an empty L-ION damages when its kept in fully discharged state at long periods of time.

oswald-josh said:
I have my hd7 with an extra battery pack which is spposely make the phone last x2 more than normal and it only makes it through 8 hours a day most time and if am lucky it makes it to 10 hours.. Anyone knows why
Sent from my HD7} using XDA Windows Phone 7 App
Click to expand...
Click to collapse
i can see this few causes.
1) battery not calibrated, damaged or worn out. Have a check in the service centre,
2) old/unoptimised/ worn out / faulty sim card or APn settings ( this is the biggest culprit in smartphones). U have to change yr sim card every 2 years . this will ensure u have the newest network technologies go hand in hand with OS updates or firmware updates for yr phone . APN settings is another reason, setting the wrong apn settings could lead to battery drain.. another thing is do not use sim card meant for another phone ( example iphone 3G) and use it on wp7 phone ..
They may be configured differently work with the OS and not necessarily optimised for another phone's OS and although it may work, I have experienced his myself when i used th my older iphone 3g sim card in my wp7 phone. Result was battery drain. So always use a newer sim card when u are changing phones,
3) features like location, wifi ect., xbox live, auto upload to facebook accounts, push email...turn them off when not needed

aquanaut88 said:
Not surprising really. Battery life on 7720.68 (HD7) improved significantly after using the built-in Connection Setup app. I saw this tip in another thread and can verify it worked on my HD7. Yesterday I went from 5:30am to 11pm on a single charge with exchange pushmail(as items arrive), wifi and bluetooth always on and 3G (Taiwan GSM), 30 minutes gps logging, 30 minutes web browsing, 60 minutes zune and 15 minutes talk time. Battery is stock and already 7-months old. MS & HTC got this one right -- I think WP7 has a very bright future. Cheers
Click to expand...
Click to collapse
think 2 factors increased yr battery life
connection setup - It has been updated 2 times in the marketplace, so i believe there will be some optimisations . i believe it does something more than the wp7 cellular options
push email "as items arrive" . its microsoft's newest push technology called direct push which supposedly saves battery life.. "as items arrive" is direct push technology

Mango has background tasks, push notifications and live tiles that aren't as volatile, etc.
There's a lot more going on in the background, and a lot more 3G usage going on in the background as well.
Really, it was just foolish for HTC to put a phone out with such a small battery. They had issues with the HD2's small battery (basically same phone) as well as the Evo4G and several of their other phones. They needed to put at least a 1500 mAh battery in this thing.
You can't really expect good battery life out of this phone, especially come Mango.
8 hours is pretty bad, adn that's about the most I can get in NoDo with light usage. I thought my Vibrant's battery was bad. It runs circles around this (though it's gotten more updates, so perhaps more issues were fixed).
Also, WP7 doesn't have an easily accessible GPS toggle so a lot of people (esp those on NoDo) are using phones wiht GPS enabled practically all the time. Might wanna turn that off. It will add about an hour or more to your battery life.
In either case I cannot get through a full day of below moderate to moderate use on this phone. The battery is just too small.
My mom got hte 4.3" new HTC Android on AT&T one of the 4G HSPA+ phones I forget hte name (it's similar to the Samsung so I get them confused) and she doesn't have an issue getting through a day. The battery is much bigger, though... So I blame the battery
Excuse the rambling.

[Mango] battery drain

follow this steps for some reason if u experience battery drain in mango
1.- Turn off the phone and pulled out the sim card.
2.- Turn on the phone without the sim card. (Why?, eerr...i don't know!)
3.- Turn off the phone again and reinstalled the sim card.
4.- Finally, turn on the phone.
Please let us know if it worked for you

I've just done it.
I'm a bit skeptical if this method actually improves anything...
Let's see tomorrow how it goes...
I'll post the result here.

The best way to resolve battery drain issues is by resetting Mango after its flashed. I did that with mine and the battery stopped pouring out like a rain drain to just sipping a fine wine.

MartyLK said:
The best way to resolve battery drain issues is by resetting Mango after its flashed. I did that with mine and the battery stopped pouring out like a rain drain to just sipping a fine wine.
Click to expand...
Click to collapse
yes resetting works...but the prob is sometimes the drain comes back...
apparently it has to do with push email and connections..
especially yahoo mail.....maybe the telco is not playing friendly with this one

MartyLK said:
The best way to resolve battery drain issues is by resetting Mango after its flashed. I did that with mine and the battery stopped pouring out like a rain drain to just sipping a fine wine.
Click to expand...
Click to collapse
confirm, it works.
Data connection is the problem of battery drain if we've got data connection off, wifi off, location and bluetooth off battery drain is minimal, I can say 1-2% per 5/6 hours in sleep (during night) with data connection (during sllep) about 5-10% in the same time

MartyLK said:
The best way to resolve battery drain issues is by resetting Mango after its flashed. I did that with mine and the battery stopped pouring out like a rain drain to just sipping a fine wine.
Click to expand...
Click to collapse
I did that anyways cause everything was amuck after the update. My HD7 gets like 4 hours battery life while browsing on a full 3G connection. And that's not a 4 hours of having the screen on/using it, either... Already tried a different battery, no change.
Yes, the data connection drains a colossal ton of battery, not helped by this phone's small battery size.
They need to add quick toggles for GPS, Bluetooth and stuff like that. 3rd party apps clutter up my app menu so I don't install those. Just need a quick toggle somewhere, or add the command to the voice recognition system ("GPS Off/On", "Bluetooth Off/On", etc.).
It's much easier for me to manage battery on the Vibrant because Turning off Superfluous features like WiFi, GPS, and Blue Tooth are only a swipe and a tap away. Not so much on WP7. I never turn off my data connection, so I'm confused why Microsoft added a Data Connections app, but nothing for GPS, WiFi, or BT. Just need to add in some toggles somewhere... that are easily accessible.

I don't understand how you get 4 hours when I play music/podcasts all day at work, text all day, use apps, and go online & my HD7 makes it through at least my 9 hour work day
Sent from my HD7 using Board Express

apparently sim issues in the OS cause battery drain problems
THis is a problem found , even in IOS and android
Wp7 should be no exception

I own a Focus and I started a thread exactly because I found a similar issue. However, the "drain" wasn't present in 7660 (Mango beta).
Indeed, data connections have a 10-20% negative impact on battery life compared to beta (at least on my Focus), but the heaviest drain I got from apps that run in the background. Once I disabled those, the boost is more than noticeable.
I will also try what OP described. Btw, how/where did you get to that?

EnderPsp said:
I own a Focus and I started a thread exactly because I found a similar issue. However, the "drain" wasn't present in 7660 (Mango beta).
Indeed, data connections have a 10-20% negative impact on battery life compared to beta (at least on my Focus), but the heaviest drain I got from apps that run in the background. Once I disabled those, the boost is more than noticeable.
I will also try what OP described. Btw, how/where did you get to that?
Click to expand...
Click to collapse
well i did it works, i am not sure how but such a procedure , may reset something in the phone
maybe some issues with signal.

Well for me it did nothing...
@EnderPsp:
Last week I disable the apps that are running in the background and I noticed a small boost in battery perfomence.

HRQ.SLV said:
Well for me it did nothing...
@EnderPsp:
Last week I disable the apps that are running in the background and I noticed a small boost in battery perfomence.
Click to expand...
Click to collapse
i also did this at the same time
refer here
http://forum.xda-developers.com/showthread.php?t=1302541
running the taiwan SEA rom
flashed it a few weeks ago
Tried restoring in zune to nodo
it seems microsoft does not want u to go back to nodo
anyone can confirm?
the phone restarts with the black screen of the phone connected to computer picture . Says restoring , then throws up an error and restarts to normal
But something peculiar happened. My battery life improved after this error message. not sure why..
has it got something to do with zune "resetting" ot "modifying the phone??

FiyaFleye said:
I don't understand how you get 4 hours when I play music/podcasts all day at work, text all day, use apps, and go online & my HD7 makes it through at least my 9 hour work day
Sent from my HD7 using Board Express
Click to expand...
Click to collapse
Either you are lying, or you are mistaken and are talking about another phone.
Because Mango won't last that long.

FiyaFleye said:
I don't understand how you get 4 hours when I play music/podcasts all day at work, text all day, use apps, and go online & my HD7 makes it through at least my 9 hour work day
Sent from my HD7 using Board Express
Click to expand...
Click to collapse
I never said I understood. I just know that the battery drains ridiculously fast and I lost over well 10% an hour, easily. When it's at 67% the battery saver says 2 hours remaining, and it's not lying. It has worse battery life than a cheap laptop.
Unusable as a daily driver because it dies way too damn fast.

I wouldn't call it horrible on my Focus, but it is definitely more of an issue than it was with NoDo. Following the same usage patterns as before I am lucky to get 12 hours out of a charge, where on NoDo it would just barely last through a 16 hour day. So I either charge it midway through the day, or don't use it as much. Right now I'm not using it as much .

I found change the Brightness to low instead of Automatic saves a lot of battery usage, I am so surprised.

xflier said:
I found change the Brightness to low instead of Automatic saves a lot of battery usage, I am so surprised.
Click to expand...
Click to collapse
Yeah but in daylight you can't really see it then. Which is too bad.
I actually would've thought that the Focus would have a better battery as they have the AMOLED going on.

xflier said:
I found change the Brightness to low instead of Automatic saves a lot of battery usage, I am so surprised.
Click to expand...
Click to collapse
I found that out many months ago. I don't know if it makes a difference on all phones, but it significant on the Focus. Unfortunately, my Mango battery drain observations are with the brightness already on Low.

The Focus has a Super AMOLED screen, which has 5x the outdoor visibility and 20x the viewing angles of the HD7. That may work for that phone, but it would make the HD7 unusable for me outdoors; and I'm assuming many other people. It only has an LCD screen. With automatic brightness I can already see my own reflection in the screen more clearly than the actual phone/OS images...

"The Focus has a Super AMOLED screen, which has 5x the outdoor visibility and 20x the viewing angles of the HD7. That may work for that phone, but it would make the HD7 unusable for me outdoors; and I'm assuming many other people. It only has an LCD screen. With automatic brightness I can already see my own reflection in the screen more clearly than the actual phone/OS images..."
this makes me feel better that I picked Samsung phone, I was regretting Samsung focus because It randomly reboot and also after 10-15 mins HD video recording, I suspect it is quality issue.

Go Comment or Star for Battery Fix

I'm sure we all know that the battery life on the G Nexus is pretty awful, so let's all go star and comment on the issue so we can get Google's attention!
http://code.google.com/p/android/is...s Owner Summary Stars&groupby=&sort=&id=22878
Just scroll all the way down to the bottom and star the issue or leave a comment too.

Done and done... I hope this comes before I need to return the VZ GNex

Hmm, compared to my EVO 4G, I barely had to do anything to this to get the battery life to be very good (estimate 100 -> 0 = 15hours). Maybe I use the screen less than you guys though.

At home, no LTE connection. 5.5 Hours.

On GSM.. battery life is stellar.. keep in mind, like the person who posted above me that if you are in a low signal area your battery will be destroyed searching for signal..

Yeah I don't have LTE where I am either, but I have it forced to CDMA only. Android OS is my battery killer. I usually get around 6 hours before having to plug it up.
I really think that if enough people starred the issue then it will get someones attention! (Crosses fingers)

Please star, but don't comment. There is enough useless comments there already, and everyone gets notified on new comments.

taypotts said:
Yeah I don't have LTE where I am either, but I have it forced to CDMA only. Android OS is my battery killer. I usually get around 6 hours before having to plug it up.
I really think that if enough people starred the issue then it will get someones attention! (Crosses fingers)
Click to expand...
Click to collapse
you probably have a rogue app killing your battery. if I let my nexus sit idle with LTE on I get close to 2 and a half days

Hi,
This high Android OS Keep awake time is not specifically about battery life issue.
We are discussing the fact that, because of this, the phone is constantly waking up (wake up state).
And that's should not happen while the device is turned off, for example.
Yes, of course, this will relate to battery life at the end. But, that's not the point of the discussion / bug as everybody has different preference of battery life. One can say 12 hours is enough, while others may say 24 hours is not enough, according their usage pattern.
Zepius said:
you probably have a rogue app killing your battery. if I let my nexus sit idle with LTE on I get close to 2 and a half days
Click to expand...
Click to collapse

Zepius said:
you probably have a rogue app killing your battery. if I let my nexus sit idle with LTE on I get close to 2 and a half days
Click to expand...
Click to collapse
Yeah I don't think that is the case... even after rebooting it stills is draining even when idle...

i aint charged in 3 days so im all good

This is nothing new. Android is a batt hog, plain and simple. You think google doesnt know this already. Its an "acceptable" item. Where they know about it & it's not the best, but thats what they get if they want a phone thats constantly using the network, has a large HD screen and is so damn good to look at you wont want to put it down.
Quit itchin and get on with it....

I have the extended battery from Verizon so keeping that in mind, my phone lasted 14 hours with 10% remaining with normal use. I stopped testing since I had to go to sleep
By the way I have Beweather and Facebook updating every hour and Pulse updating every 6 hours. I also have endgadget, Cnet, Google currents, Flickr and 500px updating.

So far battery life is a bit lower than I would like but not to a horrible state. definitely going to need the extended battery though. playing around today to see how fast I can kill it.
can't get photo to upload now though for some reason but got 2 hours 10 minutes with 12% remaining. would kinda like to see that as a stat added to phone reviews, minimum battery life. Max is fine but I'd rather know how long it will last with power using.
Sent from my Galaxy Nexus using XDA App

I'd say battery life was less than great on 4.0.1 but 4.0.2&.0.3 its pretty damn good now my idle usage is next to nothing. 2 days ago i had 47 minutes talk time, 1h38m screen on and about 13-15 hours of idle and still had almost 40% left at midnight.

luv2ride said:
This is nothing new. Android is a batt hog, plain and simple. You think google doesnt know this already. Its an "acceptable" item. Where they know about it & it's not the best, but thats what they get if they want a phone thats constantly using the network, has a large HD screen and is so damn good to look at you wont want to put it down.
Quit itchin and get on with it....
Click to expand...
Click to collapse
I think you don't understand.
This is not about battery life, but the high Android OS Keep awake time. Which means your phone was awake when it's turned off.
Obviously, this doesn't happen on my HTC Desire, nor Nexus S with Gingerbread.
Sent from my Galaxy Nexus using xda premium

I can't speak for battery life on the LTE Nex as i have the HSPA+ version...I've found that the battery life is quite excellent after a few charge cycles...Have gotten 21hrs on a single charge with normal usage...if i'm watchin vids or playin games then im putting my phone on the charger cuz the screen really does eat up battery alot.

Battery Reducing Quickly?

Hello everyone, new to the forum since I just picked up my note 10+ and thiught this forum seemed more knowledgeable than others for battery issues or issues in general. I dont really know if it's an issue but I'm curious of how others people batteries are acting for their note 10+'s. Mine died a few hours ago and once it hit 100% I removed the charger and didn't use it for just over an hour and I noticed my battery went down to 2%. I have my always on screen on of course, most of the apps were dead and I did optimize the battery in the settings while my phone was charging then stopped using it until it charged fully. So I had no apps open and I had a version of battery saving on. I did medium but left the higher res screen on including the cpu at 100%. Would this cause my battery to go down 2% in an hour without any use?
For a side question, is there a better way to get the most out of your battery? I always thought it was let it die everyone inna while but I read recently charging it to 80 then letting it down to 60 and back up to 80 and repeat is the best? If that's true, how do you keep that up and how long will you need to keep that before normal chargers?
Thanks. Hope someone can help

If it went down 2% in an hour, that's 50 hours of standby plus always on display. That's crazy good.
Sent from my SM-N975U using Tapatalk

Best way to go is using normal charge an never let the battery drop below 20% forget about trying to maintain certain range (60-80), it will just drive you crazy

rcobourn said:
If it went down 2% in an hour, that's 50 hours of standby plus always on display. That's crazy good.
Sent from my SM-N975U using Tapatalk
Click to expand...
Click to collapse
If I put my iPad mini to sleep at 100%, I wake up the next morning with 100%. Maybe 99. But usually 100.
That's not the norm, and it's not perfect apples to apples, but it is possible.
Also, 2 days of standby with zero use is not unusual, but definitely not "crazy good".
Sent from my SM-N920W8 using Tapatalk

Holmes108 said:
If I put my iPad mini to sleep at 100%, I wake up the next morning with 100%. Maybe 99. But usually 100.
That's not the norm, and it's not perfect apples to apples, but it is possible.
Also, 2 days of standby with zero use is not unusual, but definitely not "crazy good".
Sent from my SM-N920W8 using Tapatalk
Click to expand...
Click to collapse
So... buy an iPhone?
Sent from my SM-N975U using Tapatalk

rcobourn said:
So... buy an iPhone?
Sent from my SM-N975U using Tapatalk
Click to expand...
Click to collapse
So far you've been Super helpful to the op. Thanks for posting.
Sent from my SM-N920W8 using Tapatalk

rcobourn said:
If it went down 2% in an hour, that's 50 hours of standby plus always on display. That's crazy good.
Click to expand...
Click to collapse
It went down TO 2% not down 2%.

RedsonRising said:
It went down TO 2% not down 2%.
Click to expand...
Click to collapse
That's not what he said. Read it again.
"Would this cause my battery to go down 2% in an hour without any use? "
Sent from my SM-N975U using Tapatalk

Wow that is unusual. Do a search for "sleeping apps" in setting and add all the apps you don't need running in the back ground. Also in device care > battery you can see what app is using your battery.
Sent from my SM-N975U1 using Tapatalk

rcobourn said:
If it went down 2% in an hour, that's 50 hours of standby plus always on display. That's crazy good.
Sent from my SM-N975U using Tapatalk
Click to expand...
Click to collapse
So besides that little fight you had with the other forum member (lol) I appreciate your comment. But there seems to be back and forth, one other person says its good, another says its not. (the one I quoted below). Just seems weird to me that with no open or running apps and just the always on display running that it went down in an hour in 2%. Searching around, people saying losing 1% In an hour with the same set up, no running apps with AOD is bad. I kind of agree since its not truly in use. But unfortunately I cannot find any battery standby tests from Samsung or anyone else to confirm it.
aznmode said:
Wow that is unusual. Do a search for "sleeping apps" in setting and add all the apps you don't need running in the back ground. Also in device care > battery you can see what app is using your battery.
Sent from my SM-N975U1 using Tapatalk
Click to expand...
Click to collapse
I agree with you more honestly that it shouldn't be going down that fast in an hour with just the AOD running. I didn't have any apps running once it 100%, I was on it while charing it to around 50% but then once I knew I was putting it down for a while I ran the optimization and had the phone kill all the apps. When I saw it go down the 2% I did check out the apps using the battery and the AOD was the only thing listed. Maybe I didn't charge to a full 100%? even though it said 100%... Ill check it out tomorrow once I charge it fully again, today I was charging it up and down most of the day sadly. I try and keep most apps from not running in the background, some I do need though like for my IoT devices needing to know my location, I have yet to change that to just using LTE as my location GPS, but that was not on last night all. Ill try out the sleeping apps though, I didn't know there was a setting for that. Thanks again

AOD typically consumes 1%~2% in my past note devices(7,8,9)

ccigas said:
Hello everyone, new to the forum since I just picked up my note 10+ and thiught this forum seemed more knowledgeable than others for battery issues or issues in general. I dont really know if it's an issue but I'm curious of how others people batteries are acting for their note 10+'s. Mine died a few hours ago and once it hit 100% I removed the charger and didn't use it for just over an hour and I noticed my battery went down to 2%. I have my always on screen on of course, most of the apps were dead and I did optimize the battery in the settings while my phone was charging then stopped using it until it charged fully. So I had no apps open and I had a version of battery saving on. I did medium but left the higher res screen on including the cpu at 100%. Would this cause my battery to go down 2% in an hour without any use?
For a side question, is there a better way to get the most out of your battery? I always thought it was let it die everyone inna while but I read recently charging it to 80 then letting it down to 60 and back up to 80 and repeat is the best? If that's true, how do you keep that up and how long will you need to keep that before normal chargers?
Thanks. Hope someone can help
Click to expand...
Click to collapse
Battery optimization takes a little bit so if you just started using the phone give it a few days.
Also, package disabler or ADB can be used to turn off any major things that you are not using (i.e. Bixby or DeX).
Regarding Cell life: Yes between about 30% and 80% are the optimal percents. That doesn't mean try and always keep it there, that would just be silly and unrealistic.
However, it is important to be conscious of this. For example, don't leave your phone on the charger for days on end sitting at 100%. Don't leave your phone in a drawer or a backpack with 0% in the cells.
Cells are technically damaged (or worn would be a better word) every cycle. The most damage comes from when the voltage drops to its lowest point and its highest point. (i.e. 0% and 100%)
For example, if someone were to charge a LiPo or Li-Ion battery only between 30% - 80% for an entire year and another person with the same phone always went down to 1% and always to 100%, the latter phone would have more cell wear thus it would not hold as much power.
Once you learn of this and become conscious of this then you tend to adjust your habits. All other myths and theories about battery calibration have really not been a thing in many many generations of Android. While you can screw up battery calibration through a service menu, rarely (if at all) a battery loses calibration. Most people start seeing battery wear and think its a calibration issue and then seek ways to fix this. At that point, it cannot be achieved because there is a physical change to their battery which can only be refreshed by getting a new battery.

Reporting my battery life. I guess this is truly an all day device.

Give it a couple days to settle. The first three days, mine got pretty bad battery life. Then yesterday I got almost 10 hours of screen time after using it pretty heavy all day. Mixture of Facebook (battery hog), Internet, texting, emailing, and using the camera (also a battery hog). What finally killed the battery was me downloading, installing, and uninstalling multiple versions of GCam trying to find one that worked well enough to use. I finally found one before my phone hit 0%.

winol said:
AOD typically consumes 1%~2% in my past note devices(7,8,9)
Click to expand...
Click to collapse
In an hour? Last night I even scheduled it off and had no running apps and medium power saving mode fully on and lost 5% battery in roughly 7 hours with no use.
DeeXii said:
Battery optimization takes a little bit so if you just started using the phone give it a few days.
Also, package disabler or ADB can be used to turn off any major things that you are not using (i.e. Bixby or DeX).
Regarding Cell life: Yes between about 30% and 80% are the optimal percents. That doesn't mean try and always keep it there, that would just be silly and unrealistic.
However, it is important to be conscious of this. For example, don't leave your phone on the charger for days on end sitting at 100%. Don't leave your phone in a drawer or a backpack with 0% in the cells.
Cells are technically damaged (or worn would be a better word) every cycle. The most damage comes from when the voltage drops to its lowest point and its highest point. (i.e. 0% and 100%)
For example, if someone were to charge a LiPo or Li-Ion battery only between 30% - 80% for an entire year and another person with the same phone always went down to 1% and always to 100%, the latter phone would have more cell wear thus it would not hold as much power.
Once you learn of this and become conscious of this then you tend to adjust your habits. All other myths and theories about battery calibration have really not been a thing in many many generations of Android. While you can screw up battery calibration through a service menu, rarely (if at all) a battery loses calibration. Most people start seeing battery wear and think its a calibration issue and then seek ways to fix this. At that point, it cannot be achieved because there is a physical change to their battery which can only be refreshed by getting a new battery.
Click to expand...
Click to collapse
This is useful, thank you. Never knew not discharging device is the way to go but we all learn new things every day. I'm at 65% right now, when waking up at 6am with 95%. Wireless android auto for about an hour, plus okay-ish use. Ill make sure to charge it up to around 80% tonight.
Mr. Orange 645 said:
Give it a couple days to settle. The first three days, mine got pretty bad battery life. Then yesterday I got almost 10 hours of screen time after using it pretty heavy all day. Mixture of Facebook (battery hog), Internet, texting, emailing, and using the camera (also a battery hog). What finally killed the battery was me downloading, installing, and uninstalling multiple versions of GCam trying to find one that worked well enough to use. I finally found one before my phone hit 0%.
Click to expand...
Click to collapse
Thanks, I think I am seeing a bit better today after having it for 4 days or so now? Ill follow the above quote about calibration and go from there.

ssgunner20 said:
Reporting my battery life. I guess this is truly an all day device.
Click to expand...
Click to collapse
Over 8 hours screen time is great, best I've gotten so far is 7.5 hours

I just wanted to throw my two cents in here... My battery life is pretty terrible in comparison to my S10+. Trying to find a rogue app of some sort but I just hit 1% with 12 hours off the charger. Keep in mind that is not 12 hours of use. In fact I used it for about an hour of total screen time today.

sikclown said:
I just wanted to throw my two cents in here... My battery life is pretty terrible in comparison to my S10+. Trying to find a rogue app of some sort but I just hit 1% with 12 hours off the charger. Keep in mind that is not 12 hours of use. In fact I used it for about an hour of total screen time today.
Click to expand...
Click to collapse
Yeah I came from an S10+ and noticed my battery on the N10+ was pretty bad in comparison.
I did restore everything from my S10+ though, not a clean install of everything.
Wonder if that may be causing issues.

Is everyone having problems on Verizon?

Quote " Last night I even scheduled it off and had no running apps and medium power saving mode fully on and lost 5% battery in roughly 7 hours with no use."
Unless you put it in airplane mode, your phone will keep connected to cell tower (or wifi if you have wifi calling) otherwise you won't receive calls and messages, so there is no such thing as phone with no use, and if you have weak signal or some interference your battery usage can increase drastically even in standby because the cell radio will try to connect at full transmit power. And then you have all those programs running in the background, God knows what they're doing. As others suggested disable programs you don't use, also you can force close programs that you don't use often. When I had my older Note rooted, I optimized it so well it would run 2% down per 8 hrs overnight, but it took some effort. Biggest problem is to know what to disable without loosing functionality for stuff you need. Give it some time for people to learn more about new phone. BTW my 3 day old phone has 435 apps and services installed and most of them I have no idea what they do.