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Is there any solution to the battery drain on ics

i lose around 40 precent overnight everyday
its really frustrating knowing that i have to work with it full day afterwards
so is there any fix for this?

No idea what youre talking about. Mine only drains 20% with wifi and wifi apps running overnight.
Maybe you should look over what you got running, and if you got a custom kernel, reduce the lowest frequency of the cpu. Im running mine at 450Mhz or something.
Ooooor maybe 'overnight' for you is like 26h ?

You could also............
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suspense!
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Leave it on the charger over nite! I know. Shocking.

Download "BetterBatteryStats" from here and check which app is causing it. If you need assistance, just head over to BBS thread. Remember to attach your log file so it's easier for them to help you.

Hearmeman said:
i lose around 40 precent overnight everyday
its really frustrating knowing that i have to work with it full day afterwards
so is there any fix for this?
Click to expand...
Click to collapse
First thing, you should get CPU Spy from the market. This will tell you if your TF is going into deep sleep or not.
If you were experiencing the same issue under HC then ICS most likely wouldn't fix the issue anyhow.
Prior to ICS I was loosing about 25% over night which just shouldn't happen. I was rooted but stock otherwise. I unrooted my TF & completely wiped before flashing ICS. One cool thing about ICS is there is an intergrated task manager widget. You can see what programs are running at any current time. There were three programs that were constantly running that I disabled. Those were PixWE, Netflicks, & My Uploads. Netflicks kept wanting me to update but I don't use it so why update it? I simply disabled it and there are a whole host of other programs that can be disabled too.
With all this being said I am only loosing 3-4 percent over night running ICS completely stock.

Try airplane mode
There's an app in the market that simulates airplane mode, but allows wifi still. After I installed it I stopped losing battery overnight. It's basically a wake-lock issue.

2easilyamused said:
There's an app in the market that simulates airplane mode, but allows wifi still. After I installed it I stopped losing battery overnight. It's basically a wake-lock issue.
Click to expand...
Click to collapse
+1 This worked for me too but for a different reason. My TF tends to leave wifi switched on, even when told to turn off when the screen does. It could also be a rogue app as described above. Once you sort it out, overnight drain should only be a few percent at the most.

2easilyamused said:
There's an app in the market that simulates airplane mode, but allows wifi still. After I installed it I stopped losing battery overnight. It's basically a wake-lock issue.
Click to expand...
Click to collapse
Could please tell me the name?

How to diagnose here
I lose ~20% overnight in flight mode.
If I go Settings > Battery I see it's a lot of Android OS. But widgets must be included in that. So then I go settings > apps > running and see a few apps running, but I can't tell which of these is killing the battery and I don't know which app would tell me ((can I run top on the the commandline?)). I will experiment more and report back. I suggest you do that same.
This should go in the first post of this thread:
To diagnose this charge before sleep, put into flight mode overnight and look in the morning to see if the Android OS has been the culprit.
Perhaps you don't need any 3rd party apps for diagnose but if you need to be available for early morning calls use a profile scheduler.

Get a new Kernel
The main problem is the kernel in ICS, a way to fix this is changing your kernel, I do recomend the Test kernel from Guevor, install from version 11 to up, test it and keep the one you like. My tf is lasting fully with keyboard, around 30hrs.

I use test 13
but on .17 and not .23

I'm on ICS 4.0.3 with 3.0.8-NEO though
werewolferx said:
The main problem is the kernel in ICS, a way to fix this is changing your kernel, I do recomend the Test kernel from Guevor, install from version 11 to up, test it and keep the one you like. My tf is lasting fully with keyboard, around 30hrs.
Click to expand...
Click to collapse
My Nook got stolen and I'm waiting for a DroidPro to arrive so this would be on my main phone. When I've tried to flash just the kernel on it's own I've had problems before. This time I'll give it a go but am I missing something in terms of flashing a new kernel on?
I'm on ICS 4.0.3 with 3.0.8-NEO-3.0-TeamICSSGS-257174-g197c9a1-dirty (build *07)
Other than the possible battery problem it's been good. I just want to check to see if yo uhave anything more concrete to backup your decision... that a different kernel really might make any difference because that Test kernel from Guevor is very much in flux... I'd no idea which one to choose.Up to test15 now.
(thread for reference here: http://forum.xda-developers.com/showthread.php?t=1565519 )
For convienience it would be nice to backup the current kernel first as other than battery it's working well...
update, edit instead of bump:
ok, I lost 1% an hour last night in flight mode (6% over 5 hours) with all background apps and services killed. Does that seem about right? The interesting thing was that not all processes/services/backgrounded showed the same on different task killers...
I bet there's lots of people updating kernels when actually it's an app, or the left over effects of an app or something like that.

Hearmeman said:
Could please tell me the name?
Click to expand...
Click to collapse
Use Auto Airplane Mode by DON this fixed my problem with battery drain from the wifi staying on.After 4 days of use I still hade 35% battery left!

Andorid System Battery Drain Again...

Android System Again Started Draining My Batter Need Serious Help...I would Like to k ow if this is a hardware problem so that i can interact With Samsung Service Centre :crying:

Yousufs2 said:
Android System Again Started Draining My Batter Need Serious Help...I would Like to k ow if this is a hardware problem so that i can interact With Samsung Service Centre :crying:
Click to expand...
Click to collapse
how about u root and freeze/debloat the system apps? there's tons of guide in here u can refer to

nickchk said:
how about u root and freeze/debloat the system apps? there's tons of guide in here u can refer to
Click to expand...
Click to collapse
I have to root bt will it really make a difference because the problem started After Using MHL the phone used to reboot when I connect to My T.V So i Stopped Doing that and now this problem started

Yousufs2 said:
I have to root bt will it really make a difference because the problem started After Using MHL the phone used to reboot when I connect to My T.V So i Stopped Doing that and now this problem started
Click to expand...
Click to collapse
well,depends on what apps you freeze,it really help in saving battery in standby time, besides freezing and remove apps,'' greenify'' is nt bad,it help u freeze active apps but once u use ur apps,it unfreeze ur apps again,saving alot of battery.
my phone 's battery only consume 1% though out all night. Of course,u have to root first to get the advantage.ps: (i never use power saving mode,and display always set to automatic)

nickchk said:
well,depends on what apps you freeze,it really help in saving battery in standby time, besides freezing and remove apps,'' greenify'' is nt bad,it help u freeze active apps but once u use ur apps,it unfreeze ur apps again,saving alot of battery.
my phone 's battery only consume 1% though out all night. Of course,u have to root first to get the advantage.ps: (i never use power saving mode,and display always set to automatic)
Click to expand...
Click to collapse
So Can I greenify System Apps Also?? Coz i dont think i can greenify system apps

Yousufs2 said:
So Can I greenify System Apps Also?? Coz i dont think i can greenify system apps
Click to expand...
Click to collapse
no,u cant greenify system apps,that's why u should freeze ur system apps.Greenify for freeze/unfreeze other apps that u installed(might have eat ur battery). if u doing nothing,i'm sure ur problem will persist.

nickchk said:
well,depends on what apps you freeze,it really help in saving battery in standby time, besides freezing and remove apps,'' greenify'' is nt bad,it help u freeze active apps but once u use ur apps,it unfreeze ur apps again,saving alot of battery.
my phone 's battery only consume 1% though out all night. Of course,u have to root first to get the advantage.ps: (i never use power saving mode,and display always set to automatic)
Click to expand...
Click to collapse
My phone consumes about 12% overnight (using 1 of 3 power saving modes) which is terrible! I will wait for Cyanogen or other Custom rom , until then i think it is not worth to have root without changing of rom. If you want please give me some advices to increase battery life (without root if it possible)

athankar75 said:
My phone consumes about 12% overnight (using 1 of 3 power saving modes) which is terrible! I will wait for Cyanogen or other Custom rom , until then i think it is not worth to have root without changing of rom. If you want please give me some advices to increase battery life (without root if it possible)
Click to expand...
Click to collapse
i don't know other ways to conserve battery without using root,i thk the basic(off wifi,2g,etc) u already know. just keep the background activity to the minimum. don't waste time on task killer or 3rd party battery saver,they are useless and consume more battery(in my experience)

Get the app BetterBatteryStats. Run it for a day, use your phone like you usually would. Next day, look at the stats the app gives you.
Also, read this http://forum.xda-developers.com/showthread.php?t=1827676
I, too, had a mysterious battery drain problem and tried for days to pinpoint the culprit. Turned out to be the sd card. I reformatted the card and the drain was gone.

nickchk said:
i don't know other ways to conserve battery without using root,i thk the basic(off wifi,2g,etc) u already know. just keep the background activity to the minimum. don't waste time on task killer or 3rd party battery saver,they are useless and consume more battery(in my experience)
Click to expand...
Click to collapse
Best way to save battery drain is to be rooted dude.
Install cpu-no frills (or set cpu) and select maximun spped to 1,2 and minimum speed at 312Mhz in ondemand and cfg.
Choose your network mode at 2G
Brithness at minimum or a half an it's for sure that your phone will be 2 days longer

corduroy84 said:
Get the app BetterBatteryStats. Run it for a day, use your phone like you usually would. Next day, look at the stats the app gives you.
Also, read this http://forum.xda-developers.com/showthread.php?t=1827676
I, too, had a mysterious battery drain problem and tried for days to pinpoint the culprit. Turned out to be the sd card. I reformatted the card and the drain was gone.
Click to expand...
Click to collapse
I have a micro sd card which was formated on another phone and i decide to format it again on my S2plus. And yes, i check again and battery drainage overnight is now about 2-3%! Thanks for the tip

athankar75 said:
I have a micro sd card which was formated on another phone and i decide to format it again on my S2plus. And yes, i check again and battery drainage overnight is now about 2-3%! Thanks for the tip
Click to expand...
Click to collapse
No prob, man.
Sent from my GT-I9105 using xda app-developers app

klurosu said:
Best way to save battery drain is to be rooted dude.
Install cpu-no frills (or set cpu) and select maximun spped to 1,2 and minimum speed at 312Mhz in ondemand and cfg.
Choose your network mode at 2G
Brithness at minimum or a half an it's for sure that your phone will be 2 days longer
Click to expand...
Click to collapse
Its working fine now I disabled all share play

nickchk said:
no,u cant greenify system apps,that's why u should freeze ur system apps.Greenify for freeze/unfreeze other apps that u installed(might have eat ur battery). if u doing nothing,i'm sure ur problem will persist.
Click to expand...
Click to collapse
Well thanks for the all Info I freezed All Share play and it and battery is working fine now

[Q] Battery Discharging quickly even when not in use.

Hello Developers.
My Device is Lava XOLO A500.
Everything was fine when I brought it. Its battery life was perfect. But since a week I am experiencing problem with the battery.
Its draining very fast even when not in use. I keep my phone full charged at night and when I see it in the morning I find it fully discharged.
Please Help Me. I really need your help.I am providing the battery usage screenshot below which may help you to understand my problem.
Thank You.

Its hard to say. I take it you're rooted?
If so, install BetterBatteryStats found here, run it and check for any kernel wakelocks or heavy processes. You could also use TricksterMOD to see which CPU frequencies were used the most and whether or not your phone is going into deep sleep.

why don't you go to the svc center and claim the warranty?
it's still a week, isn't it?

cording ccingste
Go to setting > app > running and look for apps at cached processes status and stop most of them.

Ishan16 said:
Hello Developers.
My Device is Lava XOLO A500.
Everything was fine when I brought it. Its battery life was perfect. But since a week I am experiencing problem with the battery.
Its draining very fast even when not in use. I keep my phone full charged at night and when I see it in the morning I find it fully discharged.
Please Help Me. I really need your help.I am providing the battery usage screenshot below which may help you to understand my problem.
Thank You.
Click to expand...
Click to collapse
bro, go to settings > apps > running apps
check which user apps (not system apps) are running like maps, lava/xolo centre or something(any lava/xolo app), browser etc..
now go to > all apps (right towards the running apps) find that apps which u noted running for long time but u not need it run. select it and press Stop > Ok.
these apps restart every time with phone restart. so i suggest you to root your phone and uninstall those unwanted apps.
press thnx if i helped.
Sent from my A15 using my thumbs

What about trying to reset it?
Did you already try to run a full reset on the device? If the problem still occurs I'd think its a problem with the battery it self.

if you are rooted try changing the rom and doing proper wipe in recovery before installing the new rom.

[Q] Which Kernel should I use to reduce battery drain? [CM 10.1]

Hey everyone!
I flashed CM 10.1 yesterday (cm_p500-userdebug-cm-10.1 from jenkins. androidarmv6.org/job/android/ and I'm amazed how smooth and perfect it is working (A huge 'Thank you!!' to the developer )
The problem is that my battery drain is awful. It took less than 8 hours today to completely discharge, though I hardly touched it.
I used Battery Calibration and also installed "WakeLock Detektor" to see where the problem is, and it stated that my phone isn't asleep 99% of the time though the display is turned off most of the time :crying:
The main reason is a kernel-related thing named "suspend_backoff" that keeps it awake.
I wanted to install a different kernel, but I got no clue which one... I actually planned on installing the recent DorimanX-Kernel, but then recognized that this is only available for the Galaxy SII
Can anyone recommend a Kernel that keeps my system running smooth but the battery drain at a minimum? I basically need my phone for Messaging (SMS, WhatsApp, E-Mail), Calendar and once in a while as navigation system. So no need for spectacular game performances or so.
Are there other Ways to improve my battery life on that phone (I've read all the general tips for improving battery life)? Maybe some OC things I can change manually?
I'm grateful for any help. Thanks!

Helbelinc said:
Hey everyone!
I flashed CM 10.1 yesterday (cm_p500-userdebug-cm-10.1 from jenkins. androidarmv6.org/job/android/ and I'm amazed how smooth and perfect it is working (A huge 'Thank you!!' to the developer )
The problem is that my battery drain is awful. It took less than 8 hours today to completely discharge, though I hardly touched it.
I used Battery Calibration and also installed "WakeLock Detektor" to see where the problem is, and it stated that my phone isn't asleep 99% of the time though the display is turned off most of the time :crying:
The main reason is a kernel-related thing named "suspend_backoff" that keeps it awake.
I wanted to install a different kernel, but I got no clue which one... I actually planned on installing the recent DorimanX-Kernel, but then recognized that this is only available for the Galaxy SII
Can anyone recommend a Kernel that keeps my system running smooth but the battery drain at a minimum? I basically need my phone for Messaging (SMS, WhatsApp, E-Mail), Calendar and once in a while as navigation system. So no need for spectacular game performances or so.
Are there other Ways to improve my battery life on that phone (I've read all the general tips for improving battery life)? Maybe some OC things I can change manually?
I'm grateful for any help. Thanks!
Click to expand...
Click to collapse
I found SweetnSour's version 11 kernel quite good with cm10.1.
However, the ROM needs some help to get good battery life:
Install 2xBatterysaver. It will turn off data and WIFI when the screen is off (turn them on periodically to allow syncing). There are various apps like this one.
Control WIFI. Use Y5 battery saver or Whiz WIFI manager. Y5 is tiny and effective but crashes on cm10.2. Both check for favorite hotspots, leave WIFI on and turn it off when leaving the hotspot.

Thanks for your quick response!
Just tried to flash Sweetnsour's Kernel, but it won't work. I flashed this one --> versionFINAL-CFS.zip
Is that the correct one or rather one of those? -->" version11-CFS-TWRP.zip" or "version11-CFS.zip"
Edit: What actually are CFS respectively TWRP? Searched the forums but couldn't find an answer

[solved] or rather [solvished]
After days of trial and error, cutting and re-enabling all connections from WiFi to 3G and hibernating, un- and re-installing basically all of my apps and trying loads of other roms I didn't love as much as this in the least, I found the source for my phone being awake basically 100% of the time.
The changelog of the mod stated that there's still this WiFi-issue that keeps the phone awake.
Well, though I've tried before, It now works: switching off the WiFi connection finally gets my phone to sleep.
I think I'll just be running on my mobile data for the followin days or weeks until this bug has been fixed.
Btw: A little hint for the developer (I'm posting here, since I'm a noob and can't post in the developers forum): When switching the WiFi options to turn out WiFi whenever screen goes dark, it won't connect afterwards. I always needed to reboot my phone when I wanted WiFi to work again. (This bug also caused my mobile data not to work. It apparently thought WiFi was running, though it couldn't connect.)

Need help on battery life and CPU usage

I have a Samsung Galaxy S7 and the battery was doing fine. A few weeks ago the phone started getting quite slow and the battery life went way down. I had installed a few apps around then, so I removed them and still battery life was bad. I tried restarting the phone and that didn't help. At the time I was running Marshmellow and I was using OSMonitor to watch the system. I was finding that Android OS was taking most of my battery and 30% of the CPU all of the time. Not long after that Nougat became available and I upgraded thinking that might help. It didn't help and OSMonitor no longer worked. I switched to GSam Battery Monitor and used adb to give it the permissions to see all app information. I'm still finding that the Kernel is taking 28% of my battery and Android System is taking 37% of my battery and I can't figure out why. I would rather not need to do a full reset and install all of my apps and settings again, so I'm asking if anyone out there has ideas on things to try and fix this. This is a non-rooted phone running the stock image from Samsung/Verizon.
Thanks for any help.

try activate the Battery Saving option and use it for a day and see if helps

I've had this happen to me before. The phone was getting seriously hot while it was happening too. I decided to do all I can without doing a factory reset (I was on vacation at the time, so no access to something to backup my data).
I cleared the cache of all apps. Then I disabled all of the stock apps I didn't need (like Gear VR). I also shuttered apps running in the background to about a max of 3 apps open at any given time. That stopped the insane heat issue, but Android System was still sucking 30% of the battery. I turned off Always On Display, that got me down to about 25%. A factory reset got the phone down to around 10%, and I never saw the issue again.
Before you do that I would recommend checking out this thread below as there does appear to be a bunch of other possible solutions provided by others.
https://forum.xda-developers.com/s7-edge/help/how-experiencing-android-battery-drain-t3327730/page51

Djuganight said:
try activate the Battery Saving option and use it for a day and see if helps
Click to expand...
Click to collapse
But then my background syncing is turned off too...
I didn't need this before, so wondering why I should need it now.

I had same issues and was able to fix it. See the following thread for details.
https://forum.xda-developers.com/showthread.php?p=71558514

Try this , it helped me a lot .
Download from the XDA forums the Kernel named : "Apollo Kernel" v7
Just flash it , and when you install it , if you dont use your phone for high end games or hard work,that requires high end specs , then you can underclock the cpu/gpu .
It s a battery life saver, plus , your components will be much better in terms of thermals/life