Develop Bugs

[CM7] Battery drain fix

I found this thread on Desize HD forum:
http://forum.xda-developers.com/showthread.php?t=984337&page=6
then i wonder can we get some information to know where the problem come from?=> we can fix the battery drain issue on all GB build. Hope it help out devs. cheer
Sorry for my bad english

What drain?
Are there really so many problems with drainage on CM7/GB builds?
2d, 3h, 25m on battery with 60% left.
The first CM7 build i used is the one in my sig. I'm amazed by the lack of problems with this build

The only drain that's still ongoing is bluetooth on standby drain AFAIK. This DSP issue is not related to the HD2, thus I don't think it's valid to implement. With bluetooth turned off and heavy usage, I get roughly 2 days out of my device also... I really don't think the drain is a big issue. Honestly, the biggest issues is (And it's not much): Robot voice once in a while, some Wifi issues (EAP mostly), Wakeup lag and BT drain on standby.

the drain is related to the toolchain used to compile our kernals and roms?). I however can do easily 3 days with out charging on android, using the same setup as KrewsialNL

Actually
Actually, i get pretty horrible battery life across all builds...
it could be that I have a v1 TMOUS hd2 though... something is weird with it. I always get random energy spikes (even with sync off)
can't get more than 14-18 hours...

My battery drainage is fine using the Typhoon rom. I think some people are expecting a little too much out of their batteries.

It's only 1230mah if it was 1500mah it would have been way better.

KrewsialNL said:
Are there really so many problems with drainage on CM7/GB builds?
2d, 3h, 25m on battery with 60% left.
The first CM7 build i used is the one in my sig. I'm amazed by the lack of problems with this build
Click to expand...
Click to collapse
How on EARTH are you getting that long out of your battery?
Are you using the phone at all?
I've used loads of different builds and never come even close to half that battery life, in fact no more than about 20hours MAX with light usage.
I am using Juice Defender to disable my WiFi and Data when the phone is not in use too.
Any tips?

I have run all the latest GB builds and I also get this weird spike (around 70mA to 100mA) usually when I leave the phone overnight (not charging) and this drains my battery down to almost empty by morning. This is with bluetooth off and wifi on. No apps installed on the phone.

KrewsialNL said:
Are there really so many problems with drainage on CM7/GB builds?
2d, 3h, 25m on battery with 60% left.
The first CM7 build i used is the one in my sig. I'm amazed by the lack of problems with this build
Click to expand...
Click to collapse
mmmm That CM7 build has great battery life but yours is beyond reality... are you sure you haven't connect the phone in those 2 days?
Mine says "4D 10h 1m 50s on battery" and has more than 50% left but it has 3 green spikes (in battery use, I connected 3 times but didnt charge to 100%)

Crin said:
How on EARTH are you getting that long out of your battery?
Are you using the phone at all?
I've used loads of different builds and never come even close to half that battery life, in fact no more than about 20hours MAX with light usage.
I am using Juice Defender to disable my WiFi and Data when the phone is not in use too.
Any tips?
Click to expand...
Click to collapse
Well I was going to say exactly EXACTLY the same thing! Except that i didn't like Juice Defender
Is battery THAT GOOD?!?

Battery
well yes, it's certainly feasible...
it's just that MY hd2 specifically gets random spikes in energy usage.... I'm not sure why, been trying to resolve it for a while.
I don't really get those spikes in WM, only when I go someplace that doesn't have signal... it will spike up initially and then settle down (dutty's rom)
However, with these android roms.... i get random spikes of increased current around 100-200ma while the phone is in sleep. Bluetooth off, sync off, wifi off etc.
also, when the phone is in use... it is not uncommon to have current of 400+ consumption... hitting 500+ when web browsing...
I never got this high in windows mobile...generally around 400 when streaming youtube in wm. I'm wondering if it is an android thing...
edit:
in a perfect world, our battery consumption should stay around 4ma constantly... Which we know that isn't always the case because we have data syncing and signal strength changing...but to give you an idea....
if we have a 1230mah battery... dividing that by the current draw (4ma) gives us a standby time of ~307.5h....
that's ~12.8 days
however, with my current usage... say, i'm getting about 14 hours out of my battery... that's like if i constantly had a current draw of ~68ma...
Taking a look of my usage charts.... if we say the phone is only in use for 6 hours, and the rest is in standby for 10h at 4ma...
the 6 hours would have a power consumption of ~300ma the whole time....
which i think is kinda excessive....
meh. i don't know.
perhaps i'll upload my usage charts later... lately on this new rom, i've been getting only 8 hours of battery :/
but it could be because i've been playing around with it too much

I am on a TMO US HD2 first generation and I am doing good if I can get 6 hrs of battery with the stock battery and normal usage. No wifi, 3/4g, no GPS, and auto screen dim. If I am using the net or something like angry birds I am down to 2-3 hrs max. I have tried underclocking and still not getting a full 8 hrs of life. Would love to find a solid rom that lasts 12 hrs or more. Ordered an extended battery so maybe that will help a bit.

tageeboy said:
I am on a TMO US HD2 first generation and I am doing good if I can get 6 hrs of battery with the stock battery and normal usage. No wifi, 3/4g, no GPS, and auto screen dim. If I am using the net or something like angry birds I am down to 2-3 hrs max. I have tried underclocking and still not getting a full 8 hrs of life. Would love to find a solid rom that lasts 12 hrs or more. Ordered an extended battery so maybe that will help a bit.
Click to expand...
Click to collapse
I have the same TMO US 1st Gen. I'm using
TyphooN CyanogenMod 7
http://forum.xda-developers.com/showthread.php?t=933951 just uncheck bluethoot when you don't use it.
I get from 1 to 2 days with moderate use.

Define what's good and what bad with the standard battery? I have been getting on average about 10-15 hours and that's with doing alot of texting, web surfing, mp3 player and xda lol, and crunchyroll (streaming shows) usually over 3g but sometimes over 4g.
Sent from my PC36100 using XDA Premium App

robrob777 said:
I have the same TMO US 1st Gen. I'm using
TyphooN CyanogenMod 7
http://forum.xda-developers.com/showthread.php?t=933951 just uncheck bluethoot when you don't use it.
I get from 1 to 2 days with moderate use.
Click to expand...
Click to collapse
Thanks for the tip. I have a second HD2 that I test builds on and I was actually in the process of installing the ROM you mentioned last night I am excited that this may be the rom to drop on my daily driver I have noticed that non GB roms (2.2) seem to have much stronger WIFI signal strength so I am hopeful this GB version will have solid WIFI signal too. Love using GB but hate the wifi issues I keep having. Thanks agian for the tip.

Well, this thread didn't go anywhere.
I'm finally trying to get up the courage to switch to a NAND rom.
I get awful battery life out of my SD build I've been playing with and that is with a 1500mAh replacement battery.
I'd hate to switch only to find myself in the same position?
Looking at TyphooN CyanogenMod 7 Nightly v3.6.0 . . .

Revhead said:
Well, this thread didn't go anywhere.
I'm finally trying to get up the courage to switch to a NAND rom.
I get awful battery life out of my SD build I've been playing with and that is with a 1500mAh replacement battery.
I'd hate to switch only to find myself in the same position?
Looking at TyphooN CyanogenMod 7 Nightly v3.6.0 . . .
Click to expand...
Click to collapse
battery drain on SD builds may vary from SD card used.
I can confirm that from my experience, i was not able to use the phone on the second day (total up time 1d + 12h TOP) when i was on SD builds
BUT.. while on NAND (no A2SD no Data2SD)
I can confirm that i can now use the phone for 2d + some hours, depending on use.
All battery info apps told me that battery life is Good (not excellent, not very good).

Made the switch. Battery life as good if not better than with WM and SD build. I feel the biggest improvement came when I installed setCPU.
Sent from my HTC HD2 using XDA App

Ughh battery drain definitely too fast.

I feel like I make a thread for each phone I go through. First Blackberries, then Droid X, now Galaxy Nexus.
I am getting pretty horrible battery drain that is definitely worse than others' Nexuses. I have gone to the extended battery now for a few days, yet in the morning, when I unplug from charger (says 98% but charged?), with brightness only a quarter of the way up from lowest, I can literally watch the percentage (battery number mod in corner) drop one-by-one each minute or a few...So if I am actually using the phone, you can imagine it drops pretty fast. Yesterday, with very very moderate use the phone was still dead within 5-6 hours. It was at the mid-80s within an hour or more. Again, with moderate use.
It is stomach-dropping watching the percentage number just go down and down. Yet my friend's Gnex using the extended battery his first day did not hit 85% yesterday until 5+ hours later. The battery stats page on mine shows nothing with high numbers except Screen and Android OS, so I assume no apps are draining it. I am rooted with unlocked BL, on bigxie's deodexed ROM with softkeys mod, battery percentage mod, and power menu mod. I have 100-something apps and many widgets but no battery draining/updating ones. Others with the same ROM report fine battery.
I believe after using the ext. battery for a couple days, it should be "conditioned" if needed at all, yet I see no improvement.
I'm getting very angry watching this drop.. For example, 40 minutes off the charger with almost NO use except for turning the screen on here and there, I am at 94% battery with Screen at 46%, Android OS at 34%, Phone Idle 11%, Cell Standby 9%, and Android System 2%.
And then 1 hr 20 min in, at 88% battery with 55% Screen, 27% Android OS, 6% Phone Idle, 6% Cell Standby.
This doesn't sound normal right? Keep in mind, those numbers are with almost no phone use..very minimal settings menus visited and one update from Market.
Jesus, literally almost every time or two I turn the screen on just to check these numbers, I see the damn battery percentage drop a number. Not even using the phone how/as much as I normally would be. This is infuriating. Luckily, it doesn't seem to drain much with the screen off.

Quit checking and wait til the bug is fixed and blood pressure stabilizes?
Crazy world, ay?

Update to 4.0.2 or 4.0.3 with an improved kernel = success.
Use the phone for 1-2 weeks to stablize battery life - mine is better now than it was when I began using it. But the kernel/rom makes a big difference.

Thanks. Any suggestions on with combo to use now? 4.0.3 preferrably I guess.
Then why does my friend on totally stock 4.0.2, non-rooted have that great battery life from the first day using the extended battery?? I'm pretty much basing mine off of his and other's who are getting ridiculously long life. I never understood how it varies SO much. We should all have the same relative to usage.

just4747 said:
Thanks. Any suggestions on with combo to use now? 4.0.3 preferrably I guess.
Then why does my friend on totally stock 4.0.2, non-rooted have that great battery life from the first day using the extended battery?? I'm pretty much basing mine off of his and other's who are getting ridiculously long life. I never understood how it varies SO much. We should all have the same relative to usage.
Click to expand...
Click to collapse
No. Because no two phones are set up the same. Too many variables to say relatively same usage. For instance, when i go to bed i get 2-3 hours standby per percentage point. Not everybody is going to get that.
Crazy world, ay?

@rbiter said:
No. Because no two phones are set up the same. Too many variables to say relatively same usage. For instance, when i go to bed i get 2-3 hours standby per percentage point. Not everybody is going to get that.
Crazy world, ay?
Click to expand...
Click to collapse
Maybe, but the fact that I have no other visible outstanding draining factors, and I get no 4G at home and therefore have it set to CDMA only...I should not be seeing 1% drops almost every time I turn the screen on for more than 30 seconds. Especially with an extended battery.
God forbid I want to use GPS or 4G.

More battery life threads please.

case0 said:
More battery life threads please.
Click to expand...
Click to collapse
Wow, really? At first glance in all sub-forums I saw about two, if that. I have a legitimate concern, especially when my friend is getting about 4 times better life. Thanks for your help though in the device forum where this 'doesn't belong'.
..And over the course of only a few minutes of the screen being on maybe twice and sending one email, I saw it go from low 82-83 down to 77. ****ing awesome.

just4747 said:
Wow, really? At first glance in all sub-forums I saw about two, if that. I have a legitimate concern, especially when my friend is getting about 4 times better life. Thanks for your help though in the device forum where this 'doesn't belong'.
..And over the course of only a few minutes of the screen being on maybe twice and sending one email, I saw it go from low 82-83 down to 77. ****ing awesome.
Click to expand...
Click to collapse
You probably have a misbehaving app. Download better battery stats from the android apps and games section here at xda and let it run for a day or so and see what processes are being used the most and what your wakelocks are, etc.
Also, find a 4.0.3 rom with a kernel that can be undervolted and try that out.
Sent from my Galaxy Nexus using xda premium

joshnichols189 said:
You probably have a misbehaving app. Download better battery stats from the android apps and games section here at xda and let it run for a day or so and see what processes are being used the most and what your wakelocks are, etc.
Also, find a 4.0.3 rom with a kernel that can be undervolted and try that out.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Thank you, downloading now and will check it out.

I'll admit I'm using the GSM version so my experiences may not apply but for the first few days my battery life was utter crap.
Its been MUCH improved over the last few days, I dont have the wakelock issue and with the screen off the battery drain is literally only about 3% per hour, and thats with background data on.
YES, the screen DOES use a lot of battery, it isnt really avoidable and is somewhat expected with a 720p 4.6 inch super AMOLED screen.
The one thing I can recommend doing is finding a modded kernel and undervolting that CPU - It seems they've been really rather generous providing power to the thing, I've been able to take off at least 100-150mv across the board.

Antzor said:
I'll admit I'm using the GSM version so my experiences may not apply but for the first few days my battery life was utter crap.
Its been MUCH improved over the last few days, I dont have the wakelock issue and with the screen off the battery drain is literally only about 3% per hour, and thats with background data on.
YES, the screen DOES use a lot of battery, it isnt really avoidable and is somewhat expected with a 720p 4.6 inch super AMOLED screen.
The one thing I can recommend doing is finding a modded kernel and undervolting that CPU - It seems they've been really rather generous providing power to the thing, I've been able to take off at least 100-150mv across the board.
Click to expand...
Click to collapse
This - My battery on the stock battery on GSM sucked first few days, and I was really concerned I made a poor purchase. But with the screen on probably 5 or 6 hours of my work day it lives through the day and just enough to get home after that. I can charge it at work too, which I usually do. On my day off it survived 18 hours and still had ~20% battery life left on 4.0.3 AOKP/Francisco.Franco Kernel

From my experience, the battery life isn't bad. I did install the "extended" battery as soon as I bought the phone but is isn't much bigger than the stock battery. I am on stock rooted 4.02. With LTE off I use about 2% per hour in standby. With LTE on it is almost double that (3-4%/hour). I have several widgets running and gps enabled. (wifi when available) I can easily get a 16-18 hour day and have 50% remaining when I go to bed unles I sit around gaming for a couple hours.
I may try a new ROM tonight but I expect it will probably make things worse.

Im running a bone stock setup and im getting 12 -14 hours a day... normally I read posts like the one skiddingus posted and wonder why I never can achieve those readings so i feel your confusion . I do have 4g on and gps off screen is about 1/4 of the way up brightness wise

Battery usage of android 4.1

I switched to jellybean (android 4.1) recently. The system is great. However it drains the battery much more than cm7. During a night the battery can reduce from 80 to 60. Is it normal? If not is there solution to extend battery usage?

Unfortunately, that is normal. Turning the fire off can save the battery, but I just charge it everyday. Compared to rooted stock, battery usage increases between 10 and 20 percent for me under normal use.
Sent from my Amazon Kindle Fire using xda app-developers app

wonderow said:
I switched to jellybean (android 4.1) recently. The system is great. However it drains the battery much more than cm7. During a night the battery can reduce from 80 to 60. Is it normal? If not is there solution to extend battery usage?
Click to expand...
Click to collapse
+1
According to Better battery stats, most of the drain on my Kindle is caused by AudioOut2 wakelock. I failed to resolve the issue and i'm not sure what is causing it. I would like to know if anyone else experienced similar issues.
IMHO, it must be sort of a bug since JB is fairly new and devs need time to resolve all the issues.

loCe45 said:
+1
According to Better battery stats, most of the drain on my Kindle is caused by AudioOut2 wakelock. I failed to resolve the issue and i'm not sure what is causing it. I would like to know if anyone else experienced similar issues.
IMHO, it must be sort of a bug since JB is fairly new and devs need time to resolve all the issues.
Click to expand...
Click to collapse
Same exact issues here. And I agree that it will (hopefully) get ironed out over time.
Sent from my Amazon Kindle Fire using Tapatalk 2

I don't seem to seem that terrible of battery life with mine. I'm running twa_priv's cm10 and during the night it might go down about 7-10 percent. I do have Wi-Fi off while in sleep which helps.

Shredder87 said:
I don't seem to seem that terrible of battery life with mine. I'm running twa_priv's cm10 and during the night it might go down about 7-10 percent. I do have Wi-Fi off while in sleep which helps.
Click to expand...
Click to collapse
That's not normal for a standby... it should be <5% ...not the mention that device does not have to communicate with 2G/3G networks (unlike smartphones), and on my smartphone i get average of about 3days (medium usage, light on wifi) without recharging
It's a bug - some process prevents device to go to sleep (aka. wakelock) which causes drain. I expected at least 2-3 days on a single battery charge, and tbh, recharging it daily is little bit disappointing Something tells me it's a kernel bug since i encountered it on every CM10 rom so far :S

loCe45 said:
That's not normal for a standby... it should be <5% ...not the mention that device does not have to communicate with 2G/3G networks (unlike smartphones), and on my smartphone i get average of about 3days (medium usage, light on wifi) without recharging
It's a bug - some process prevents device to go to sleep (aka. wakelock) which causes drain. I expected at least 2-3 days on a single battery charge, and tbh, recharging it daily is little bit disappointing Something tells me it's a kernel bug since i encountered it on every CM10 rom so far :S
Click to expand...
Click to collapse
Well coming from an previous ICS build it's a major improvement. Typically the battery life from ICS builds(That I used, Energyrom, AOKP Kindle Edition, GedeRom) would drain 20-30% nightly like the OP said, so coming from there it seems like JB fixed whatever was killing the battery. I can probably go a week with light usage on my kindle before I recharge it. ICS in general drains the battery on any device. I used to get 5 days on my Droid 1 running CM7. With ICS I'll go through 3, though I never want to go back to Gingerbread, hahahaha.

Shredder87 said:
Well coming from an previous ICS build it's a major improvement. Typically the battery life from ICS builds(That I used, Energyrom, AOKP Kindle Edition, GedeRom) would drain 20-30% nightly like the OP said, so coming from there it seems like JB fixed whatever was killing the battery. I can probably go a week with light usage on my kindle before I recharge it. ICS in general drains the battery on any device. I used to get 5 days on my Droid 1 running CM7. With ICS I'll go through 3, though I never want to go back to Gingerbread, hahahaha.
Click to expand...
Click to collapse
My record for battery on a smartphone is 6 days... using ICS
Anything that drains battery more than 1% in 1.5/2 hours in standby is bad, no matter what OS version...

I also have the impression that on a fully working Jellybean ROM, battery usage is more intense than on a stock ROM. I still prefer the advantages of the new ROM, and also charge daily. Being mobile, I use the XTPower MP-10000 Powerbank, which gives more than enough battery life and charges the kindle while in use to 100% full. This has resolved the issue of battery drainage for me.

[Q] 1st Gen Kindle Fire - Jelly Bean Battery Life Issue - Concern

Dear XDA community,
First and foremost, I am happy there is an active Android community working to bring us some improvements for our 1st Gen Kindle Fire.
However, my concern has always been Battery Life. You see, it doesn't matter how cool Android is if lacking optimal battery life; so why aren't we focusing on that? Why isn't there a fix to give some of us the feeling of not having to charge our devices everyday (even if not using it)?
Having only joined XDA a few months now, I feel like this is nothing more than a gimmick a.k.a. spending more time fixing than using the device.
I have always been going after pure stock Android, modded by Hashcode. The last time I flashed Hashcode's latest JB 4.2.1 [12-18 Deep Sleep Fix], I felt like he was trying to throw an April's Fool but alas, it was in December of 2012. Will this thing ever get sorted out?
So, can anyone shred some light for this Android noob? Or should I go and lick Apple's butthole?
Sincerely,
Cason

Over time it will.
The thing is I have learned from my G1 until now is Cyanogen runs great on AOSP devices. On sense based ones or non AOSP phones it will run but there will always be something.
The stock Rom (modaco also) gives me best battery.
For cyanogen best way for it to run is on a Nexus device.
Posted from my Amazon Kohr-Ah Fire

One cause of shorter battery life is the device not going into deep sleep when the screen is off. The JB ROMs are not too bad on the battery when your are actively using the tablet but WILL drain when it is sleeping, even more if it is not going into deep sleep. The drain when sleeping normally is = or slightly > 1% per hour but adds up real quick when you leave it sit for a day or two. I usually physically power off the device when not in use.
Sent from my Amazon Kindle Fire using xda app-developers app

for JB why does it always have to be 1% drop per hour when the device is not in use?

You could use another ROM from official CM. This is little better than Hashcode since its updated more than Hashcode’s and I find that the battery lasts quite a lot. SGT7 CM10.1 is quite good to me.
http://forum.xda-developers.com/showthread.php?t=2051331
By the way I really liked your PM to me about Mics. I sarcastically liked it (dumbass).
Sent from my Nexus 7 using xda app-developers app

UPDATE: After flashing Hashcode's stock Jelly Bean 4.2.2 AOSP, battery life consumption is much improved if the Kindle Fire is left in sleep mode with Airplane mode on. I tested mine by leaving it in sleep mode for 9 hours at full charge and lose only 1% of battery life.
Good News: if you are doing anything on your Kindle Fire without requiring a connection, it's best to put Airplane mode on, it doesn't drain battery as quick as with Wi-Fi on. At least you won't have to charge regularly.
Bad News: I know it is a hassle to do the above but it is much better now that you don't have to turn off your Kindle Fire after each use. Also, battery life consumption with Wi-Fi on during sleep mode still drain quite a bit. I left it for 6 hours 30 minutes at full charge and when I returned, battery life dropped to 92% (setting Wi-Fi as "only keep Wi-Fi on when plugged in).
The Badest Bad News: Using your tablet with Wi-Fi on is like playing a game on Kindle Fire, it drains the battery up the wazoo!!! I was only able to squeeze 3-4 hours at max using Google Play and web browsing.
All in all, let's hope the battery indicator is correct on the report. I'd like to give Hascode a big H-o-o-r-a-h for keeping me from flashing back to stock Kindle Fire purely for battery life.
Please, Hashcode, for the sake of love, improve battery life performance when "tablet is in use with Wi-Fi on". I won't forget about you for saving me from not having to purchase a Nexus 7 although I did have to lick Apple's butthole prior to this with my iPad 3 purchase.
Again, thanks and I'll be right here for the next update!
Sent from my Amazon Kindle Fire using xda premium

damystica said:
UPDATE: After flashing Hashcode's stock Jelly Bean 4.2.2 AOSP, battery life consumption is much improved if the Kindle Fire is left in sleep mode with Airplane mode on. I tested mine by leaving it in sleep mode for 9 hours at full charge and lose only 1% of battery life.
Good News: if you are doing anything on your Kindle Fire without requiring a connection, it's best to put Airplane mode on, it doesn't drain battery as quick as with Wi-Fi on. At least you won't have to charge regularly.
Bad News: I know it is a hassle to do the above but it is much better now that you don't have to turn off your Kindle Fire after each use. Also, battery life consumption with Wi-Fi on during sleep mode still drain quite a bit. I left it for 6 hours 30 minutes at full charge and when I returned, battery life dropped to 92% (setting Wi-Fi as "only keep Wi-Fi on when plugged in).
The Badest Bad News: Using your tablet with Wi-Fi on is like playing a game on Kindle Fire, it drains the battery up the wazoo!!! I was only able to squeeze 3-4 hours at max using Google Play and web browsing.
All in all, let's hope the battery indicator is correct on the report. I'd like to give Hascode a big H-o-o-r-a-h for keeping me from flashing back to stock Kindle Fire purely for battery life.
Please, Hashcode, for the sake of love, improve battery life performance when "tablet is in use with Wi-Fi on". I won't forget about you for saving me from not having to purchase a Nexus 7 although I did have to lick Apple's butthole prior to this with my iPad 3 purchase.
Again, thanks and I'll be right here for the next update!
Sent from my Amazon Kindle Fire using xda premium
Click to expand...
Click to collapse
A couple days after you posted your first post, Hashcode released the MAJOR improvement with battery life in regards to JB. I also read that the frandom kernal implement found in one of TWA_priv's recent releases also adds to the battery life!

Has any of you thought of using a Amazon PowerFast Charger for the Kindle. It recharges the Battery really fast. Meaning you have to worry less about battery life.
Sent from my Amazon Kindle Fire using xda app-developers app

JRBX550 said:
Has any of you thought of using a Amazon PowerFast Charger for the Kindle. It recharges the Battery really fast. Meaning you have to worry less about battery life.
Sent from my Amazon Kindle Fire using xda app-developers app
Click to expand...
Click to collapse
Would that have the shorter charge time/shorter battery life time effect?

Guitarman2010 said:
Would that have the shorter charge time/shorter battery life time effect?
Click to expand...
Click to collapse
Same battery life time, but faster charging times. It charges the battery in 3 hours. If not you could buy a modded battery or a external battery.
Sent from my Nexus 7 using xda app-developers app

CleanRom 5 battery

Hi,
This question is for anyone using the latest CleanRom on their Note II. Just wondering if your average battery drain is around 4-5%/h. I use BetteryBatteryStats. I also check the Battery section under Settings. The most battery life I have been able to get is 12 - 15 h with 1-2h screen time. At this point, the battery is at less than 10%. Is this normal ? I thought I remembered getting better life from older versions of CleanRom. I know these numbers are never achievable on any AOSP rom that I have tried. Just wanted to see what everyone's experience is with battery life. Just post any thoughts!
Thanks for your feedback! I appreciate your time!

AEiX said:
Hi,
This question is for anyone using the latest CleanRom on their Note II. Just wondering if your average battery drain is around 4-5%/h. I use BetteryBatteryStats. I also check the Battery section under Settings. The most battery life I have been able to get is 12 - 15 h with 1-2h screen time. At this point, the battery is at less than 10%. Is this normal ? I thought I remembered getting better life from older versions of CleanRom. I know these numbers are never achievable on any AOSP rom that I have tried. Just wanted to see what everyone's experience is with battery life. Just post any thoughts!
Thanks for your feedback! I appreciate your time!
Click to expand...
Click to collapse
Just like anyone else, it all depends on what kernel you're on and what apps you have wakelocking. I've been using Clean 5.0 as my daily for months and the battery life lasts me throughout the day until I need to sleep at which point I plug in... but sometimes, I'm running into fast battery drain due to some apps going nuts on me or when Bluetooth is trying to link from a long distance (where the phone would heat up and drain like mad... btw this only happened to me twice in many months). After a reboot, it usually clears up and after a recharge, I'm back to 14 hours with 20% left at night. I'm not one to be anal about my battery drain if it lasts me until I sleep (because I have NEVER had a smartphone that would last me that long without plugging in... in fact, barely half the day would be when my device would need to be fed).
I'm using Perseus' latest with a few screen tweaks, no CPU or power tweaks, using Facebook constantly, Pulse, SMS/MMS, camera throughout the day, Next 3D launcher with all the fun animations running, YouTube, Pandora when driving (so my Bluetooth is on constantly)... let's just say I'm a heavy user. When my kids get a hold of my device, they run a bunch of games and drain around 10% by the time I get it back.
I am happy with the battery life on my Clean Rom 5.0/Perseus Note II. I won't fuss about it as long as it lasts longer than half the day because that is what I was used before upgrading.