Database Users

Android OS/Battery use across various roms.

Hi people,
First post here I think, but Ive been around a while.
for the last few weeks ive been having terrible battery life on my Nexus S (i9020) and the battery stats are showing "Android OS" as being the culprit. I have tried loads of different things like a full wipe, remove all my apps etc etc.
I installed the ICS Rom, the Kellmsking MIUI rom and a stock 2.3.6 rom all with the same problem.
Each time i install a new rom, I do a factory reset/wipe, wipe cache, dalvic whatever thingy etc yet i still get the battery issue when I install a few rom.
Anyone got any idea's on what i can do to sort this out?
Ive searched and searched, both here and everywhere else on the net and I cant find any useful information.
Thanks in advance guys.

Did you try wiping battery stats in Advanced menu in CWM?
Also next time you install a ROM go to mounts and storage and format system partition.

Spectre Nine said:
Hi people,
First post here I think, but Ive been around a while.
for the last few weeks ive been having terrible battery life on my Nexus S (i9020) and the battery stats are showing "Android OS" as being the culprit. I have tried loads of different things like a full wipe, remove all my apps etc etc.
I installed the ICS Rom, the Kellmsking MIUI rom and a stock 2.3.6 rom all with the same problem.
Each time i install a new rom, I do a factory reset/wipe, wipe cache, dalvic whatever thingy etc yet i still get the battery issue when I install a few rom.
Anyone got any idea's on what i can do to sort this out?
Ive searched and searched, both here and everywhere else on the net and I cant find any useful information.
Thanks in advance guys.
Click to expand...
Click to collapse
i had the same battery issue til i flashed the matrix rom with the matrix 10.0 kernal...they calibrated the battery with a calibration app...since then i get a good 12 to 18 hrs on a charge..i have the governor set to smartass..1000/200 with deep idle enabled...give it a try it worked for me
Sent from my Nexus S 4G using XDA Premium App

Matr1x kernel also does the trick for me... you could also try the teuv! But matr1x is the [email protected]#t for me! SmartassV2
Sent from my Google Nexus S

Thanks guys, I'll look into those suggestions.
Yup, I wiped battery stats and system etc. pretty much everything that has an option to be wiped, i tried and still have the problem.
I just cant get my head around why its happening though. I've had the phone since march and its been fine all along.

I would try changing battery. Maybe your battery's life just ended...
Sent from my Nexus S using xda premium

but that doesn't explain why "android OS" is giving so much trouble in the battery stats.
I didnt seem to have it after flashing ICS but i had to get rid of that for other reasons (unreliability, crashing rebooting etc).

just downloaded the matrix kernel and am about to flash it.
My phone has been in airplane mode for the last 2 hours or so and i had reset the battery stats just before then. its showing 46% on "Android OS" in the battery stats and only 18% in "Display".
I also have Sync'ing turned off, GPS turned off, bluetooth off etc and no apps installed, yet i still get the battery drain.
Hopefully this kernel does the trick.

Well, what you described makes sense though. Assuming you weren't playing with the phone hardly at all, during that period of time, the OS probably used more power than your display.

heres my battery stats after 12hrs over moderate use...mostly texting at work..n some net
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Sent from my Nexus S 4G using XDA Premium App

thanks guys.
I installed the matrix kernel last night and its early yet but i think i still have the same problems. the phone was actually off this morning (bout an hour ago) and I had left it only 6 hours previously with 3/4 full so it ran itself dead overnight in standby with not being used.
Im getting really tired of it now, Have tried everything from kernels to roms, removing every app i use etc etc and still im having this problem.

sup people, Little update with some pics of my system. I cant seem to do screen shots on this phone like I do with the Galaxy S so their just photos.
As you can see, in the last 10 hours and 15 mins, Android OS has used 25% of the battery. it was originally higher than the screen usage but i turned the brightness all the way up to see what would happen with the stats.
Its been out of the charger since about 12 O'Clock(4 and a half hours ago) and my battery level is at 37%.
You can see in this one, I installed the Matrix kernel last night and reinstalled 2.3.6 stock rom (rooted).
Any tips or advice is very much welcome guys. Its either that or im gonna end up taking it outside and shooting it.

Well, I went ahead and tried yet another rom. I went with this Oxygen rom from the dev section,
http://forum.xda-developers.com/showthread.php?t=1285243
At this moment my battery is at 80% and I have added nothing, not even signed in with my gmail account. Im gonna give it a while and see if it drains excessively again and see if that could help pinpoint the problem.
the kernel has obviously been replaced too, with the one that comes in the Oxygen rom.

When is OTA due?

I'm not quite sure what you mean?

Well its been on for 8 hours now and theres 31% left in the battery. This is with literally no usage in that time.
I'm starting to come around to the thought that the phone itself is faulty so i think ill look into reverting to stock rom, stock recovery, lock bootloader etc and take it to the shop. Anyone got any advice on doing that?

Spectre Nine said:
Well its been on for 8 hours now and theres 31% left in the battery. This is with literally no usage in that time.
I'm starting to come around to the thought that the phone itself is faulty so i think ill look into reverting to stock rom, stock recovery, lock bootloader etc and take it to the shop. Anyone got any advice on doing that?
Click to expand...
Click to collapse
Download Better Battery Stats from the market and look at partial wakelocks to see what is draining the battery and kill it
---------- Post added at 05:33 AM ---------- Previous post was at 05:26 AM ----------
Spectre Nine said:
Well, I went ahead and tried yet another rom. I went with this Oxygen rom from the dev section,
http://forum.xda-developers.com/showthread.php?t=1285243
At this moment my battery is at 80% and I have added nothing, not even signed in with my gmail account. Im gonna give it a while and see if it drains excessively again and see if that could help pinpoint the problem.
the kernel has obviously been replaced too, with the one that comes in the Oxygen rom.
Click to expand...
Click to collapse
are you connected to a mobile network?

Teuv kernel after proactive app clearing to help battery, disabling GPS, normal stuff
Sent from my Nexus S using XDA App

new user

N910F, "Android OS" battery drain - can't determine the cause

This started happening about a week ago... I didn't install any new apps in particular. I've attached screenshots to the post.
Screen-on time is a little below an hour in these screenshots.
As you can see Android OS and Android System are at the top of the list by a long shot. Android System seems "normal" in the sense that it has 58mn of CPU time and only 18mn of wakelocks (as reported by the built-in battery menu).
Android OS however kept the phone awake for 6h11 which seems like a lot. I'm not rooted, so I did the ADB USB trick in order to pull stats out of Wakelock Detector, and all of the apps clearly don't add up to six hours. Especially not the usual suspects like Google Services, Facebook, etc.
Diagnosis shows a LOT of system processes, and I'm not sure if that means 1) it's all good as far as user land goes (I don't have any weird apps) 2) there's a system process gone rogue for some reason 3) the cause isn't showing up 4) something else???
Does anyone have any idea what's going on?

I have the same issue. Tried greenifying everything. No dice. I reboot, phone fine, then stays away. I will say that my battery life is good though, but this riddle is driving me nuts

Here is my issue, look at away bar.
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Jeffruby said:
Here is my issue, look at away bar.
View attachment 3193010
Click to expand...
Click to collapse
Me too - 910F - im on Lollipop, but struggling to make it through a day at the moment.
Checking my Battery Graph is the same Story - my phone seems to be Awake constantly.
Seems Android System is using it....
Anyone have any ideas?

I can only recommend rooting your phones and change roms or kernels.
TW is heavy on battery and if you change to a CM rom the battery life will increase dramatically.
I have rooted all my phones since the very first android phone ever made and i cannot own a non rooted device as the freedom of rooting is just to awsome to ignore.
Every time i have battery issues i ether change my rom or kernel and then my issues goes away...

Can't root Verizon unfortunately

Hmm. Try this. Unchecked under advanced wifi, the option to let Google and apps use wifi, even when wifi off. Since then, 12 hours, I have had normal sleep. Did reboot after Unchecked. . Premature to say I fixed it, but so far so good.

Update. Since unchecking that wifi option, phone sleeping normally still.

Update #2- after 36 hours. It's back! Awake constantly. Unreal

Jeffruby said:
Update #2- after 36 hours. It's back! Awake constantly. Unreal
Click to expand...
Click to collapse
I can't think of a reason it would do this... I feel like an iphone owner

Ironically I see no difference in battery life.... Hahaha. But driving me nuts.
I get through entire day... About 3.5 screen hours on. At 7pm I'm at 20% typically. Maybe that's bad?

Jeffruby said:
Ironically I see no difference in battery life.... Hahaha. But driving me nuts.
I get through entire day... About 3.5 screen hours on. At 7pm I'm at 20% typically. Maybe that's bad?
Click to expand...
Click to collapse
I'm usually around 40%. but maybe our app-age is different.

I've updated the Google Play Services to the new version 7.0.87 and this issue seems to have gone.
Find the apk here

paulrgod said:
I've updated the Google Play Services to the new version 7.0.87 and this issue seems to have gone.
Find the apk here
Click to expand...
Click to collapse
i have installed the version after the one you have posted but facebook still stays keep connected in 3g.
i can t fix the problem (in wifi is ok)

marci4na said:
i have installed the version after the one you have posted but facebook still stays keep connected in 3g.
i can t fix the problem (in wifi is ok)
Click to expand...
Click to collapse
Have you tried to block background connection on facebook?

qwertyup88 said:
Have you tried to block background connection on facebook?
Click to expand...
Click to collapse
not yet ill do. you are ritght!
i m just wondering why with kitkat you dont have to do that and you had 6 hrs of screen...
still not convincing me this lollipop

marci4na said:
not yet ill do. you are ritght!
i m just wondering why with kitkat you dont have to do that and you had 6 hrs of screen...
still not convincing me this lollipop
Click to expand...
Click to collapse
Same for me ... i also have huge connection time in Google services and App Google, but if i disable those i'm unable to receive whatsapp messages in 3g or lte...

fortunately for me the only issueis with facebook.
but i have disabled s voice, all google app sinc ecc ecc...
still not enought to have back hrs of screen of kitkat.
hate lollipop....notification enormous , no silence mode!
cmon1!!!

marci4na said:
fortunately for me the only issueis with facebook.
but i have disabled s voice, all google app sinc ecc ecc...
still not enought to have back hrs of screen of kitkat.
hate lollipop....notification enormous , no silence mode!
cmon1!!!
Click to expand...
Click to collapse
Yeah, that silent mode thing is a pain...

Oh my god !
How can i fix this?
Sent from my SM-N910F using XDA Free mobile app

wakelock without root

I noticed that recently in "Battery"'s "History details", "Awake" is pretty much solid all the time( I do _NOT_ have "root",
How should I go about finding which app is keeping my phone awake? I did not install any new apps recently, however I do update my apps all the time..

a1exus said:
I noticed that recently in "Battery"'s "History details", "Awake" is pretty much solid all the time( I do _NOT_ have "root",
How should I go about finding which app is keeping my phone awake? I did not install any new apps recently, however I do update my apps all the time..
Click to expand...
Click to collapse
Without root there's pretty much nothing you can do. You'd need root to use BetterBatteryStats, which will pinpoint what's keeping the phone awake.

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Sent from my Nexus 6P using Tapatalk

I guess I have no other choice then. I didn't even used my phone that much(
Sent from my Nexus 6P using Tapatalk

after installing BBS, I found that "bluesleep" kernel wakelock keeps my phone awake..

a1exus said:
after installing BBS, I found that "bluesleep" kernel wakelock keeps my phone awake..
Click to expand...
Click to collapse
I have no idea what this is, what's showing up under the partial wakelocks and alarms tabs in BBS?

Sent from my Nexus 6P using Tapatalk

use the device in safe mode, if it's fine, you'll know thati t's from a third party app and the "uninstalling apps" game will start

Matrix_19 said:
use the device in safe mode, if it's fine, you'll know thati t's from a third party app and the "uninstalling apps" game will start
Click to expand...
Click to collapse
it looks like it has something to do with missing blue tooth binaries inside of kernel, so not much of uninstalling apps left to do... the only app i can uninstall to get rid of wakelock is android wear, but then i'll loose sync to smart watch and that something I'm not ready to do just yet...
I submitted an issue to Google Android Issue Tracker:
Issue 198180 - android - NO DOZE - thanks to bluesleep kernel wakelock for keeping my phone awake all the time - Android Open Source Project - Issue Tracker - Google Project Hosting

a1exus said:
I noticed that recently in "Battery"'s "History details", "Awake" is pretty much solid all the time( I do _NOT_ have "root",
How should I go about finding which app is keeping my phone awake? I did not install any new apps recently, however I do update my apps all the time..
Click to expand...
Click to collapse
It looks like you may have already rooted your phone based on the above comments and identifying the source of the wake lock, but for future reference it may be worth trying the PC version of wake lock detector to view your wake locks without Root.
http://forum.xda-developers.com/showthread.php?t=2179651
I can confirm it works fine with Lolipop, although I haven't tested it with Marshmallow.

Azarin said:
It looks like you may have already rooted your phone based on the above comments and identifying the source of the wake lock, but for future reference it may be worth trying the PC version of wake lock detector to view your wake locks without Root.
http://forum.xda-developers.com/showthread.php?t=2179651
I can confirm it works fine with Lolipop, although I haven't tested it with Marshmallow.
Click to expand...
Click to collapse
I did "root" my phone and I'm able to see wakelock with BBS (see post #7)

a1exus said:
I did "root" my phone and I'm able to see wakelock with BBS (see post #7)
Click to expand...
Click to collapse
Thought so, it did look like it from the post Hopefully it will be handy if anyone stumbles on the post in the future via a search.
Good luck in getting the battery drain issue sorted!
As a side note while I don't have an Android Wear watch for a direct comparison, I do have a Pebble Time which is constantly connected via Bluetooth and it doesn't appear to be suffering from the same issue. Not directly relevant, but worth mentioning.

Azarin said:
Thought so, it did look like it from the post Hopefully it will be handy if anyone stumbles on the post in the future via a search.
Good luck in getting the battery drain issue sorted!
As a side note while I don't have an Android Wear watch for a direct comparison, I do have a Pebble Time which is constantly connected via Bluetooth and it doesn't appear to be suffering from the same issue. Not directly relevant, but worth mentioning.
Click to expand...
Click to collapse
I do believe it's useful as well) Pebble Time watch doesn't use blue tooth same as Android Wear does, it's more like my UP2 and that's why you're not suffering from same issue...

I don't have wearable device. I only pair the phone with my car. But Bluetooth wakelock is almost always on. Wtf...

Bluetooth keeps my phone awake all the time also since the 6.0.1 update. This is when it's not connected to my car even. If I turn it off the phone will enter Doze mode just fine and it works as it should.
Sent from my Nexus 6P using Tapatalk

ljwnow said:
I don't have wearable device. I only pair the phone with my car. But Bluetooth wakelock is almost always on. Wtf...
Click to expand...
Click to collapse
shamdawg said:
Bluetooth keeps my phone awake all the time also since the 6.0.1 update. This is when it's not connected to my car even. If I turn it off the phone will enter Doze mode just fine and it works as it should.
Sent from my Nexus 6P using Tapatalk
Click to expand...
Click to collapse
You need to turn bluetooth off when not using it. Do you by any chance use GasBuddy?

I don't use gas buddy. I never turned bluetooth off on 6.0 and never had this battery drain and the phone would go into doze mode fine. For now I do have it off. Hopefully they fix it in the next update.
Sent from my Nexus 6P using Tapatalk

as soon as I uninstall Weatherbug app off, my phone was able to enter deep sleep cycle and eventually doze off) I emailed to Weatherbug team, but it seems like they dropped the ball on Android app( I wrote to them earlier in regards to yet another bug a while back, yet they still haven't resolved it yet... honestly I don't even understand why Weatherbug needs to have "phone permissions" at the first place, it's not like it makes phone call or utilizes bluetooth anyhow...
anyways, it's pretty clear what needs to happen / only one thing left to do... UNINSTALL!!! oh and change my rating in PlayStore... maybe then they'll do something...

Marshmallow WiFi battery drain issue

Just updated to Marshmallow with the OTA update. Having massive battery drain. Especially from WiFi. Have already switched off WiFi and Bluetooth scanning under Settings > Location. Is factory reset working?
Can't post screenshots. : (

after updating you should do a factory wipe from recovery. and let the battery settle it may take a few charging cycles.

Please before creating a new thread straightaway, read the whole forum completely.
There is a special android 6.0 issue thread. Let the phone settle down a bit. Also in wifi advanced settings turn the keep the wifi on during sleep option to never.
And then let phone go through 2 or 3 discharging cycles.
If still then you get this wifi drain, do a factory reset.
Sent from my XT1562 using Tapatalk

K.khiladi said:
Please before creating a new thread straightaway, read the whole forum completely.
There is a special android 6.0 issue thread. Let the phone settle down a bit. Also in wifi advanced settings turn the keep the wifi on during sleep option to never.
And then let phone go through 2 or 3 discharging cycles.
If still then you get this wifi drain, do a factory reset.
Sent from my XT1562 using Tapatalk
Click to expand...
Click to collapse
Hi. Thanks for the solution. I did what you said and have less battery drain today. However, it is inconvenient to have WiFi off while the phone is in sleep.
Also, apologies for posting a new thread about an old problem. I had read through a couple of posts but did not find a comprehensive solution hence I started this thread.
Anyway, i will do a factory reset and update shortly.

tanay16 said:
Hi. Thanks for the solution. I did what you said and have less battery drain today. However, it is inconvenient to have WiFi off while the phone is in sleep.
Also, apologies for posting a new thread about an old problem. I had read through a couple of posts but did not find a comprehensive solution hence I started this thread.
Anyway, i will do a factory reset and update shortly.
Click to expand...
Click to collapse
Report back what happens ?
Sent from my XT1562 using Tapatalk

Having exactly the same problem! I don't know what to do. Flashed marshmallow on two phones and have same problem on both. We are running the single Sim xt1562 with the dual Sim ROM.
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the fix is in turning off the wifi scanning in the location settings.

fr3d0x said:
the fix is in turning off the wifi scanning in the location settings.
Click to expand...
Click to collapse
Thank you very much, done it! Even though, it happens to everyone? Or just some people?

I think I found another solution
I had the same problem, and turning off "wifi scanning" was not doing it for me. I believe the bug has something to do with "developer mode". I went to settings -> developer and under "network" I enabled "enable detailed Wi-Fi logging" and "always allow Wi-Fi searches".
Wi-Fi is no longer draining my battery, and I have "wifi scanning" enabled (under location).

Hi guys
I have the wifi drain after using Moto voice for a short while yesterday. I turned off and turned of location as well as wifi scanning but wifi is still at the top of the battery draining apps list. I used to get 2 hours sot by the time I git 80% but now I don't get that sot any more. All this started happening yesterday when I used Moto voice for the first time on 6.01 to try it out.
Any solutions or should I just wait a couple charge cycles?
Info
Running stock 6.01
Rooted with xposed
Squid kernel

Ebrahim Ali said:
Hi guys
I have the wifi drain after using Moto voice for a short while yesterday. I turned off and turned of location as well as wifi scanning but wifi is still at the top of the battery draining apps list. I used to get 2 hours sot by the time I git 80% but now I don't get that sot any more. All this started happening yesterday when I used Moto voice for the first time on 6.01 to try it out.
Any solutions or should I just wait a couple charge cycles?
Info
Running stock 6.01
Rooted with xposed
Squid kernel
Click to expand...
Click to collapse
Wait for sometime. It will go away soon.
Automated reply by JARVIS

fr3d0x said:
the fix is in turning off the wifi scanning in the location settings.
Click to expand...
Click to collapse
Thanks! I had decent battery life on stock 6.0 but started noticing bad drain ever since I've been flashing custom ROM. I had indeed traced the drain to WiFi as others here, pretty much on all the ROMs I tried, and I couldn't figure out what setting was causing the drain. Turning off WiFi scanning in Location did the trick and I have my old battery life back.
Sent from my XT1563 using Tapatalk

Yeah the "drain" my device was reporting wasn't actually draining anything.

Hai everybody.im one of the user of Moto x play by the performance of the mobile was very Good but past few days I'm facing wifi issues(battery draining)And I factory reset after completion the prblm may not rectify sooo plz any one guide me how to solve it that may very useful to me thank u...

Have you tried checking if wifi scanning is enabled in location settings? If so then turn it off

Huge battery drain from android system

Does anyone else have this kind of problem? Went to sleep with 100% battery and woke up after 8 hours sleep with 75%. This is definitely not normal. What should i do?
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That happened to me yesterday actually. I'm not sure if it's a "drain" though, but def popped up after the 4.5.3 update for me. Still got 4:30 SoT..

xgerryx said:
That happened to me yesterday actually. I'm not sure if it's a "drain" though, but def popped up after the 4.5.3 update for me. Still got 4:30 SoT..
Click to expand...
Click to collapse
Same here. I also can get good SoT but android system take's all the juice if screen is turned off.

I have the similar drain too. Using Oos 4.5.3 I'm trying to figure it out.

If you're using ExperienceOS, this issue is fixed in the latest 4.0 build

david19au said:
If you're using ExperienceOS, this issue is fixed in the latest 4.0 build
Click to expand...
Click to collapse
I havent even rooted yet.

serkka8 said:
I havent even rooted yet.
Click to expand...
Click to collapse
Go root and get a wakelock detector and see what is actually draining your system.

Binary Assault said:
Go root and get a wakelock detector and see what is actually draining your system.
Click to expand...
Click to collapse
Maybe i should do that. Or should i just flash that experienceOS?

serkka8 said:
Maybe i should do that. Or should i just flash that experienceOS?
Click to expand...
Click to collapse
Of course you can flash a ROM lol. Another option is the very well know BetterBatteryStats. Which has built in wakelock detector monitoring as well as a slew of other battery monitoring functions.

Binary Assault said:
Of course you can flash a ROM lol. Another option is the very well know BetterBatteryStats. Which has built in wakelock detector monitoring as well as a slew of other battery monitoring functions.
Click to expand...
Click to collapse
Actually i tried to boot to safe mode and checked if that works. I was able to put it to sleep, so im just trying to figure which app is causing the wakelock.

Try to clean cache and dalvik in recovery and might be re-flash your OS.
Mine, rooted on stock OxygenOS 4.5.3 loosing 0.3% per hour over night when phone is idle (on LTE always, I have a good signal, also no GPS, Bluetooth, WiFi scan etc.).
PS: Android will try to "report" back to mother-ship time to time and if there is bad connectivity it might get stack in re-try loop eating to the battery. Unless you are in airplane mode then it should stop... but I would not count on that.

serkka8 said:
Actually i tried to boot to safe mode and checked if that works. I was able to put it to sleep, so im just trying to figure which app is causing the wakelock.
Click to expand...
Click to collapse
When you root there is an app called wakelock detector free. Works great.

Binary Assault said:
When you root there is an app called wakelock detector free. Works great.
Click to expand...
Click to collapse
Yeah i have used those apps.
I figured out the app that kept my phone awake
This looks promising.

I'm going fairly strong myself

I've seen this happen on every phone I've had in there last 5 years. Factory reset it.

Delete

xgerryx said:
Wakelock detector and BBS both are not being allowed by the system to analyze data. No idea how to fix this.
Click to expand...
Click to collapse
Try this:
https://alexus.org/howto/better-battery-stats-no-root/amp

DSF said:
Try this:
https://alexus.org/howto/better-battery-stats-no-root/amp
Click to expand...
Click to collapse
BBS actually started to work once i uninstalled Wakelock Detector. Coincidence I'm sure, but I lost the entire day of data at this point. Already at 25% battery.

on oneplus chinese forum also many ppl complain more battery drain after last system update yesterday

Only one hour of screen on time
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