Database Users

Serious battery drain with minimum usage

Hi all,
The battery life of my 4month old SGS is becoming shorter every week! I can 'almost' last a work day (8 hours) with a fully charged battery and minimal use.
I had this problem also on the stock firmware, Darky's rom 8.x was a slight improvement (much faster tho!), Light-ning rom and Darky's rom 9.x.
Everyday I charge my battery untill it is full, when my alarm goes off it's already at 98% (it's still hooked up). When I'm in the train to school, my battery already dropped around 86% (being idle). I check some mobile websites, my e-mail and read some twitter messages.
Because I know services as Twitter (I'm using Tweetdeck) uses alot of resources and battery, so when I'm done looking I always shut down those programs. And I often do an 'end all' task in the 'System' app which I purchased from the market lately to monitor my battery.
During the day the only thing I do is check my mail and some websites, but not for long, mostly it would be around 5minutes or so. So WiFi is turned OFF, GPS is turned OFF, and only GMail synchronizes with default settings. So what's the deal? Is my battery slowly dieing because of oldness, or is there another problem?
Thanks in advance for helping me! You're doing a great job!
Sincerely yours,
S1GNZ

after flashing your custom roms of choice... did you ever do a battery calibration?
like let your phone drain till it dies on its own... turn it on againa nd let it die again to completely drain it to the point where u cant even turn it on.
Then plug your phone in to charge and let it charge to 100%. Keeping the phone plugged in turn on your phone into recovery. Then clear battery status.
Then reboot your phone into normal mode and let it continue charging till it says 100%. WHen you unplug your phone it SHOULD say 100% still.
This normally fix the problem but if you notice that your phone is dying quickly still then PM me.

One small advice,try logging out google talk,of-course if you are not on it much,it will give you at least 2-3 hrs more.
Also,there is already a thread active on this forum 'dont kill your phone
,give it a life' give that a read.
Mainly this battery drains are there because of apps doing sync. or polling.identify them and adjust settings.
Sent from my GT-I9000 using XDA App

cripez said:
after flashing your custom roms of choice... did you ever do a battery calibration?
like let your phone drain till it dies on its own... turn it on againa nd let it die again to completely drain it to the point where u cant even turn it on.
Then plug your phone in to charge and let it charge to 100%. Keeping the phone plugged in turn on your phone into recovery. Then clear battery status.
Then reboot your phone into normal mode and let it continue charging till it says 100%. WHen you unplug your phone it SHOULD say 100% still.
This normally fix the problem but if you notice that your phone is dying quickly still then PM me.
Click to expand...
Click to collapse
I've been browsing these forums lately, and I've also come across a thread which advice is just the opposite and that you should NOT do this, any advice if that's true? And is it also true that deleting the batterystats helps?
GreenSGS said:
One small advice,try logging out google talk,of-course if you are not on it much,it will give you at least 2-3 hrs more.
Also,there is already a thread active on this forum 'dont kill your phone
,give it a life' give that a read.
Mainly this battery drains are there because of apps doing sync. or polling.identify them and adjust settings.
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
Am I auto-logged in on Google talk? If so, how do I log myself out :$? So Google sync might drain it? (Mail, Agenda, Contacts?)
Thanks for the quick replies! I really appreciate it!
Sincerely yours,
S1GNZ

I am not 100% sure if you auto logged or not.I believe not but if not so , then open app,press menu/setting button on phone,select logout.also if you not intending to use data network,press power key till you see a menu turn off,data network,turn it on when you need it.These small things saves some power.
If you dont want to mess around with this little twiks then 'juice plotter' is the app for you.it will manage lots of things and defi. saves battery.
BTW based on your usage desc., I think I use it in similar way ...almost and yet phone makes ~2 days.
Sent from my GT-I9000 using XDA App

S1GNZ said:
I've been browsing these forums lately, and I've also come across a thread which advice is just the opposite and that you should NOT do this, any advice if that's true? And is it also true that deleting the batterystats helps?
S1GNZ
Click to expand...
Click to collapse
You of course wouldn't be doing this alot nor should you NEED to do this often. It's only something you do when you're experiencing what you currently are.
Personally I have no idea why anyone say u "Should NOT" do this.. it's not like you're altering anything hardware wise. It's mainly software and power usage aspects.
Like I said to each their own. Some people say custom roms are a "No-No" cuz it messes with the phone in more bads than good and some says stock roms are for noobs. You dont HAVE to try what I said, it's merely a suggestion of fix or methods that seems to solve the problems others have encountered.
Clearing the battery status pretty much resets it's counter to 100% and from there it will "calculate" the life of the battery from full to empty. It's a calibration thing.
Now on regards to usage, keep your data plan off and auto-sync off when you're not using it. Leave your wifi off and gps off as well.. pretty much keep anything you dont need off until you need it. Some samsung apps does a background run thing where it'll auto turn on and auto run in the background which drains ur battery quite badly. If you don't use goggle talk or samsung chat apps, there are many ways to remove them completely so it won't mess with your battery life

Simple you installed a rom with multiple posts on battery drain problem .
A rom that also tells you about battery drain problems /fix on its front page .
jje

GreenSGS said:
I am not 100% sure if you auto logged or not.I believe not but if not so , then open app,press menu/setting button on phone,select logout.also if you not intending to use data network,press power key till you see a menu turn off,data network,turn it on when you need it.These small things saves some power.
If you dont want to mess around with this little twiks then 'juice plotter' is the app for you.it will manage lots of things and defi. saves battery.
BTW based on your usage desc., I think I use it in similar way ...almost and yet phone makes ~2 days.
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
Okay! And you're right, it logs me on when I start the app. But I logged me out, just to be sure. I know about turning of the mobile data traffic, I'll see how much it saves. I think I came across juice plotter, but I'll look into it. Thanks!
cripez said:
You of course wouldn't be doing this alot nor should you NEED to do this often. It's only something you do when you're experiencing what you currently are.
Personally I have no idea why anyone say u "Should NOT" do this.. it's not like you're altering anything hardware wise. It's mainly software and power usage aspects.
Like I said to each their own. Some people say custom roms are a "No-No" cuz it messes with the phone in more bads than good and some says stock roms are for noobs. You dont HAVE to try what I said, it's merely a suggestion of fix or methods that seems to solve the problems others have encountered.
Clearing the battery status pretty much resets it's counter to 100% and from there it will "calculate" the life of the battery from full to empty. It's a calibration thing.
Now on regards to usage, keep your data plan off and auto-sync off when you're not using it. Leave your wifi off and gps off as well.. pretty much keep anything you dont need off until you need it. Some samsung apps does a background run thing where it'll auto turn on and auto run in the background which drains ur battery quite badly. If you don't use goggle talk or samsung chat apps, there are many ways to remove them completely so it won't mess with your battery life
Click to expand...
Click to collapse
Don't be offended by what I said! . I only wanted to make sure I'm doing the right thing, I appreciate your criticism though. I did what you said and fully drained my battery yesterday, kept it charging overnight, cleared the batterystats through recovery mode and at the moment it's charging till 100%. I will see if it helps!
And according to my usage, I have Wifi and GPS turned of as default. And because I reinstalled a new ROM inclusive data wipe I don't have much chat apps installed, maybe there are some default apps that don't show up in the 'System panel' app though?
JJEgan said:
Simple you installed a rom with multiple posts on battery drain problem .
A rom that also tells you about battery drain problems /fix on its front page .
jje
Click to expand...
Click to collapse
Care to explain a bit further?
FYI, I installed these ROMS:
past: Stock firmware 2.2.1
past: Darky's ROM v8.0 Gingerbread edition
past: Light-ning ROM 2.2 (if I'm correct, it's probably the latest)
current: Darky's ROM v9.2 Extreme edition (9.2 should've fixed the battery drain, am I right?)
Can't thank you enough for the replies!
Sincerely yours,
S1GNZ

im having similar problems too. calibrating doesnt really make a difference.
i installed an app called task identifier which is brilliant it tell me whats happening when the phone is asleep. the only trouble is i dont understand what these processes are so i cant disable them.... is there any sort of app out there that completely logs / signs you out of every app ??
i have 108 apps (not including system apps) and its hard trying to eliminate the battery drainers

Care to explain a bit further?
As it says post lots of with battery problems big big percentage running Darky rom .
current: Darky's ROM v9.2 Extreme edition (9.2 should've fixed the battery drain, am I right?) You would have to ask on dARKY Post .
Look at Battery drain thread LAST POST OR SO MAY BE OF INTEREST .
I am of the opinion that if a rom breaks something then installing more roms will often not fix the problem . I prefer a blank completely wiped phone in such cases with no trace of any rom left on it .
jje

@azzledazzle 108 apps? really ????
I don't have that much on my PC!
I think we should start narrowing down which apps drain most juice. I've been using Advanced Task Killer just to narrow down a couple.
example:
Sound Hound - starts on its own
Facebook had an issue with notifications push, when disabled, it still sent notifications to my phone. But I think they fixed it in the latest version.
We could start adding versions to know which app is a 'juice drainer'

CM7.0.3.1 Wakelock?

Hi All,
Running CM7.0.3.1 with Savaged-Zen 2.1.0 BFS kernel. Also using v1 of viperboy's undervolting at -100. There was a time I had stellar battery life (back on an early CM7 nightly and a way earlier version of SZ kernel), but for the life of me I cannot get back to that point. I've been checking spare parts and it is showing k9 and palmary weather with some partial wakelock but it doesn't look too severe from what I can tell, or maybe I'm reading it wrong.
Anyway, here's a view of my battery history. Does all that awake time seem odd? I'm kind of at a loss here for what is going on and how to fix it.
Thanks!

cody_dingo said:
Hi All,
Running CM7.0.3.1 with Savaged-Zen 2.1.0 BFS kernel. Also using v1 of viperboy's undervolting at -100. There was a time I had stellar battery life (back on an early CM7 nightly and a way earlier version of SZ kernel), but for the life of me I cannot get back to that point. I've been checking spare parts and it is showing k9 and palmary weather with some partial wakelock but it doesn't look too severe from what I can tell, or maybe I'm reading it wrong.
Anyway, here's a view of my battery history. Does all that awake time seem odd? I'm kind of at a loss here for what is going on and how to fix it.
Thanks!
Click to expand...
Click to collapse
this question should be address in the cyanogen sub-forum. there are literally people there with the same setup as you that can better help you.

I wasn't aware there was a sub-forum dedicated to CM ?

There is a CyanogenMod forum thread in the development forum and one for the nightlys in the general forum.
Sent from my PC36100 using XDA App

Rem3Dy said:
There is a CyanogenMod forum thread in the development forum and one for the nightlys in the general forum.
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
Right, I just didn't know that there was an actual subforum. I did know there were threads.
Thanks!!

That doesn't look like a wake lock to me. Your history shows your phone being asleep most of the time. I would guess that that is an app or apps that are using too much data or cpu time. Use spare parts to check app usage, partial wake lock, ect. Make sure you don't have facebook, twitter, ect set to update every 5 mins.

nukedukem said:
That doesn't look like a wake lock to me. Your history shows your phone being asleep most of the time. I would guess that that is an app or apps that are using too much data or cpu time. Use spare parts to check app usage, partial wake lock, ect. Make sure you don't have facebook, twitter, ect set to update every 5 mins.
Click to expand...
Click to collapse
What criteria have to be met for the phone to actually sleep? Does it sleep immediately when the screen is off? The only apps that auto update are palmary weather (2 hours) and k9 email which gets imap push.

The way I understand it, an app can request a wake lock which prevents the phone from sleeping. This can be normal for certain functions, however sometimes the app won't release the wake lock and that's when the battery drains constantly even with the screen off. Spare parts will tell you everything you need to know to find the battery drain.

nukedukem said:
The way I understand it, an app can request a wake lock which prevents the phone from sleeping. This can be normal for certain functions, however sometimes the app won't release the wake lock and that's when the battery drains constantly even with the screen off. Spare parts will tell you everything you need to know to find the battery drain.
Click to expand...
Click to collapse
Thank you, that is very helpful. Here's where I am now:
On battery 2h16m and I'm at 91%.
On spare parts under partial wake usage:
Android System - 38m23s
k-9 mail - 10m1s
Those are the two highest. The other entries are negligible.
CPU Usage:
k-9 - user time - 24s
Everything else is way under 24s
So you think K-9 is a big contender here? How about whatever android system has going on?

How much of that 2 hours have you had the screen on and doing stuff? Android system has been on for almost half of the time since you unplugged. That sounds high. I would do a full wipe and reflash the ROM or try a CFS build of savagezen. A reboot usually stops the battery drain if you catch it.

nukedukem said:
How much of that 2 hours have you had the screen on and doing stuff? Android system has been on for almost half of the time since you unplugged. That sounds high. I would do a full wipe and reflash the ROM or try a CFS build of savagezen. A reboot usually stops the battery drain if you catch it.
Click to expand...
Click to collapse
Hardly any. Been just letting it sit with the screen off, letting it discharge.
Thank you again for your help!

Yeah you've a problem with android service. I would first try another kernel maybe CFS this time. If that doesn't help I would completely wipe everything and flash again. If you use titanium to restore your apps, only restore the purchased apps, not the system apps and data.

nukedukem said:
That doesn't look like a wake lock to me. Your history shows your phone being asleep most of the time. I would guess that that is an app or apps that are using too much data or cpu time. Use spare parts to check app usage, partial wake lock, ect. Make sure you don't have facebook, twitter, ect set to update every 5 mins.
Click to expand...
Click to collapse
nukedukem said:
Yeah you've a problem with android service. I would first try another kernel maybe CFS this time. If that doesn't help I would completely wipe everything and flash again. If you use titanium to restore your apps, only restore the purchased apps, not the system apps and data.
Click to expand...
Click to collapse
Woke up today with about the same rate of battery drain. This time, it didn't look like an android system problem at all, so know knows?! So frustrating.
I still may do a complete wipe though.

You're not alone..My battery sucks and I even bought 2 new batterys and its all the same..I just carry an extra around with me..I got tired of monitoring everything.

Galaxy Note 2.3.5 high Android OS Battery Use

My galaxy note is constantly displaying Android OS use between 50-70%.
Anyone else experiencing this issue?

Flash a Custom Kernel based on 2.6.35.14 (2 are available). This solves the problem.

thanx for the suggestion.
But i'd rather keep the stock firmware, for now, as this is my first android..don't wanna risk a brick.
From other threads i've read, there's a newer firmware 2.3.6 available for the germany galaxy notes. Any idea if it fixes this bug...its really annoying..i've already done factory resets thinking it may fix it .

I bought my note in st Louis USA . It had european charger and strange language that I don't recognize . it came as KJ4 build . So I don't know from what european country my note came but I downloaded and flashed Hong Kong rom 2.3.6 and its pretty good with battery , wifi , etc . I am just really disappointed with camera . My battery usage for android OS = 8% and Android system 7% . This link might help you . http://leemn.wordpress.com/2011/11/13/rooting-and-installing-cwm-for-the-samsung-galaxy-note/

abirsharda said:
thanx for the suggestion.
But i'd rather keep the stock firmware, for now, as this is my first android..don't wanna risk a brick.
From other threads i've read, there's a newer firmware 2.3.6 available for the germany galaxy notes. Any idea if it fixes this bug...its really annoying..i've already done factory resets thinking it may fix it .
Click to expand...
Click to collapse
It definitely fixes it on the German Note... at least mine

I had/have the same issue. I flashed the latest KKA ROM which flahes the KK5 modem. I deodexed it and turned off some unwanted system apps. Running the CF-Root KKA kernel and Android OS spikes to about 30-40% at times. I don't think it really has much affect on battery life. From what I understand and have read, it has to do with wifi Scanning repeatedly. You can adjust your wifi sleep policy to help this.

abirsharda said:
My galaxy note is constantly displaying Android OS use between 50-70%.
Anyone else experiencing this issue?
Click to expand...
Click to collapse
If it's keeping your phone 'awake' then you should install BetterBatteryStats which monitors Wakelocks. It'll tell you what OS services are going nuts.
It's happened to me a few times with rogue programs and USB host going crazy when I don't unmount correctly.
- Frank

Same thing happening to me? Do you experience heavier drain on wifi than 3g?
Sent from my GT-N7000 using Tapatalk

budalica said:
I bought my note in st Louis USA . It had european charger and strange language that I don't recognize . it came as KJ4 build . So I don't know from what european country my note came but I downloaded and flashed Hong Kong rom 2.3.6 and its pretty good with battery , wifi , etc . I am just really disappointed with camera . My battery usage for android OS = 8% and Android system 7% . This link might help you . http://leemn.wordpress.com/2011/11/13/rooting-and-installing-cwm-for-the-samsung-galaxy-note/
Click to expand...
Click to collapse
thanx but for now i don't wanna flash a custom rom.
kramdens said:
It definitely fixes it on the German Note... at least mine
Click to expand...
Click to collapse
So you got the update through Kies or OTA?
ookba said:
I had/have the same issue. I flashed the latest KKA ROM which flahes the KK5 modem. I deodexed it and turned off some unwanted system apps. Running the CF-Root KKA kernel and Android OS spikes to about 30-40% at times. I don't think it really has much affect on battery life. From what I understand and have read, it has to do with wifi Scanning repeatedly. You can adjust your wifi sleep policy to help this.
Click to expand...
Click to collapse
How do you adjust the sleep policy exactly, rooting ?
ChodTheWacko said:
If it's keeping your phone 'awake' then you should install BetterBatteryStats which monitors Wakelocks. It'll tell you what OS services are going nuts.
It's happened to me a few times with rogue programs and USB host going crazy when I don't unmount correctly.
- Frank
Click to expand...
Click to collapse
So how did you fix the rouge programs and the USB host ?
lipsin said:
Same thing happening to me? Do you experience heavier drain on wifi than 3g?
Sent from my GT-N7000 using Tapatalk
Click to expand...
Click to collapse
Yup...weird that wifi uses more battery than 3g..should be other way round..

abirsharda said:
thanx but for now i don't wanna flash a custom rom.
OK than follow THIS guide to install official 2.3.6 . I did and than I rooted with superoneclick with zergrush exploit
http://jjpda.blogspot.com/2011/11/n7000-how-to-flash-n7000zskk1-236.html
Click to expand...
Click to collapse

Any misbehaving program either got their settings adjusted (stuff like sync frequency) or uninstalled. The USB host issue was, I think, because I unplugged the USB host cable without unmounting first. I just rebooted my phone in that case.

Well after countless number of hard resets....Android OS use in now around 11 %...
the difference i think was because of some apps....i'm not really sure...but this time i didn't install skype, winamp and viber...cuz every time i installed em...Android OS would be like upto 90%...

I currently have 2.6.35.7 with the KK1
would it be safe to update to the 2.6.35.14?
high OS battery is my only real problem.

Suzook1 said:
I currently have 2.6.35.7 with the KK1
would it be safe to update to the 2.6.35.14?
high OS battery is my only real problem.
Click to expand...
Click to collapse
I have the same kernel but with kk3....dunno if 2.6.35.14 will help with Android OS battery usage...my note still has no update available....
The only thing i can suggest for now its most definitely an app you installed which is causing high android OS usage...read my previous post....i hard reset my note installed all apps i had before but not winamp, skype and viber....i've kinda narrowed it down to these 3 after many hard-resets...
When i had them installed....my phone lost about 2% battery per hour on standby....But now it loses 1-2% in 8 hours on standby...

I'm having the same this with the high OS battery drain and have skype installed. Going to remove it and see if I get the same result. I didn't have the other two.
I've got the 2.3.6 KKA firmware installed but the drain just suddenly started one time (not when I installed it). I figured it can't have been the firmware itself, but much more likely an application I had installed or had updated.
Doesn't ICS have a better breakdown of service usage etc? Should be perfect if they have done this. Just have to wait and wait and wait for the ICS version.
Surely there is an app out there that can tell you what in the "Android OS" is causing the problem?
As an indication of how bad mine is at the moment, I was 100% at 9am this morning, 11:30am now and its down to 84%.. That's really awful!
I want to reset the battery stats as it could simply be that, but don't have CWM installed on this firmware. I'm rooted though.
[update] I've removed the battery stats file and restarted to see if that will help too.

Adam_S said:
I'm having the same this with the high OS battery drain and have skype installed. Going to remove it and see if I get the same result. I didn't have the other two.
I've got the 2.3.6 KKA firmware installed but the drain just suddenly started one time (not when I installed it). I figured it can't have been the firmware itself, but much more likely an application I had installed or had updated.
Doesn't ICS have a better breakdown of service usage etc? Should be perfect if they have done this. Just have to wait and wait and wait for the ICS version.
Surely there is an app out there that can tell you what in the "Android OS" is causing the problem?
As an indication of how bad mine is at the moment, I was 100% at 9am this morning, 11:30am now and its down to 84%.. That's really awful!
I want to reset the battery stats as it could simply be that, but don't have CWM installed on this firmware. I'm rooted though.
[update] I've removed the battery stats file and restarted to see if that will help too.
Click to expand...
Click to collapse
Yea...let us know if removing skype helps....
oh and i installed Asphalt 6 from the samsung apps store.....its not available in the market....i had also installed it before hard resetting my note.......and guess what....high Android OS usage again.....damn....removed it....and i think its back to normal....but still have to see if removing fixes it for sure......

I guess the battery manager will count power used by all hidden processes and services as Android OS...

I had exactly the same experience with Asphalt 6 too. Good game, but why it sucked so much power when not even in use, hell knows!
Skype not made a big difference that I could tell, but resetting the battery stats made an immediate difference. 2 hours since charged and only down to 98%. Usually it would be 90-92% by now.

How do you reset battery stats
Sent from my GT-N7000 using xda premium

Same Boat
Hii,
Following are my stats
Android OS at 35% (Awake Time 1 hr 36 mins)
Display at 25% (on for 3 hrs @ 12% brightness)
Voice Calls at 13% (34 mins)
I don't know if the Android OS is a bit of a drain. Feels so. I think the Wifi Sharing and Wifi always remain on. So does Social Hub - use it to sync FB pictures to contacts as Social Hub offers great quality pictures unlike FB app or Friendcaster.
I do have Skype installed, but its never been initialised, never logged into.
I use GO Launcher, with 9 home screens. TouchWiz has been rendered empty (no widgets, short-cuts whatsoever running there)
I do use APW widget pack - Twitter & FB updates at 3 hours. GReader (with Google Reader syncing every hour). 2 Contacts widgets.
In addition to it, I also have the PowerAmp 4x2 music widget. Homescreen has Simple Calender widget, A "Make youw own clock" widget, a 1x1 Beautiful Widget Weather.
Dunno if the widgets are causing the drain or not.
Like you remarked, my battery drain ATM is around 1-1.5% per hour, with Wifi On and everything running and syncing (as above)
The standby time has been pretty decent. Whereas I am happy with charging everyday, if I could reduce the AndroidOS overload, I cud brighten up my screen a bit more
Dunno wat to do now. I don't wanna root now or try any techy stunts. The phone is only 2 days old yet.
Wud appreciate if anyone can guide me around. I will try to FORCE STOP the Wifi Sharing and Wifi Sharing manager, along with Social Hub, and EMail apps/services tomorrow.
Wud be amazing to lose 2% over 8 hours on standby. Awesome.
Screenshot of battery app is at twitpic.com / 7m4b7y
Running Android 2.3.5
Kernel [email protected]#2
Build GINGERBREAD.XXKK3

Android OS stay awake time very long

My Android OS is showing a stay always time of over 17 hours (out of a 20 hour run time where my battery is completely depleted). Is there anyway I can find out what cause it?
I am already on 4.2.2

elty123 said:
My Android OS is showing a stay always time of over 17 hours (out of a 20 hour run time where my battery is completely depleted). Is there anyway I can find out what cause it?
I am already on 4.2.2
Click to expand...
Click to collapse
Android os = apps . Facebook maybe ?

You're experiencing wakelocks. Might wanna do some research on the forum so that you can post logs for people to analyze what's really eating your battery.

Sfkn2 said:
You're experiencing wakelocks. Might wanna do some research on the forum so that you can post logs for people to analyze what's really eating your battery.
Click to expand...
Click to collapse
THIS. I was having problems with wakelocks and traced them back to these few things below which got my battery life to greatly increase once disabled.
1) using dashclock extensions like FB and gmail
2) leaving google sync on in settings for the various google services
3) corporate email exchange servers
4) setting a long time variable for the phone to lock after the screen turns off (i did this to prevent putting in a pin to unlock but it kept the phone awake after the screen turned off)
5) live wall papers
There is also a known issue in the stock kernel that causes the phone to stay awake when it is supposed to go into sleep mode during extended periods of inactivity. This can be solved by using a custom kernel just as Franco r90 which has implemented patches in order to allow the phone to go into sleep to preserve battery. It is expected to be fixed in the next official OTA from google although this was also expected to be in 4.2.2 and was not fixed fully.

Same issue here. 4.2.2 stock kernel+rom, rooted
BBS shows "suspend_backoff" is at 45% no idea what's causing that.
Disabled pretty much all of the sync services but no improvement.
Interestingly right after the 4.2.2 update, the battery life was good.

Download this app and it will keep your applications from running in the background.
https://play.google.com/store/apps/...GwsMSwxLDMsImNvbS5vYXNpc2ZlbmcuZ3JlZW5pZnkiXQ..
Here's the forum for the application.
http://forum.xda-developers.com/showthread.php?t=2155737

scream4cheese said:
Download this app and it will keep your applications from running in the background.
https://play.google.com/store/apps/...GwsMSwxLDMsImNvbS5vYXNpc2ZlbmcuZ3JlZW5pZnkiXQ..
Here's the forum for the application.
http://forum.xda-developers.com/showthread.php?t=2155737
Click to expand...
Click to collapse
So far so good! totally eliminated the suspend_backoff wakeup

akiv said:
So far so good! totally eliminated the suspend_backoff wakeup
Click to expand...
Click to collapse
Update: Worked for a day now suspend_backoff is back. Happened after a recharge.
Could it be that afther the phone is charged something gets changed.
Edit: Runnig franco r90 kernel

I'm having the same problem with the Android OS draining lots of battery. When I reboot it sometimes helps but not consistently unfortunately.

Jester23 said:
I'm having the same problem with the Android OS draining lots of battery. When I reboot it sometimes helps but not consistently unfortunately.
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I have narrowed my problem down to places where I use wifi transmitted by a lot of routers (Office wifi)

akiv said:
I have narrowed my problem down to places where I use wifi transmitted by a lot of routers (Office wifi)
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I turn off my wifi when not home so I don't think that's the issue here.. I've tried removing a few apps like dash clock and my live wallpaper to see if it helps my issue. Will report back.
Sent from my Nexus 4 using Tapatalk 2

Google play services has something to do with the high usage. Yesterday I was near 20% usage today I disabled it and android os is at 7%. It only affects YouTube app for me, but the browser version is fine. I haven't seen any adverse affects other than maybe losing updates to the play store and ota updates which I don't care about because that's what xda and Roms are for. Now it may be placebo, but it also seems like the ui is smoother. Battery has improved greatly with sot of 3 hours with 57% left.

Hi,
how do you disable Google play services?

Try using the app greenify if your rooted.. It's been helping my battery life. Use it on maps and that will help. If maps is set as a system app, move it or just install banks minimal gapps so you can download from play store.
Sent from my Nexus 4 using xda app-developers app

Battery issue. Is this normal?

Android system has been using a lot of battery since I turned off wifi. Is this normal?
I337 mf3 running GE 4.2.2 rom with safestrap
Sent from my SGH-I337 using xda app-developers app

deadenz said:
Android system has been using a lot of battery since I turned off wifi. Is this normal?
I337 mf3 running GE 4.2.2 rom with safestrap
Sent from my SGH-I337 using xda app-developers app
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Google “android system battery drain" it comes up with a lot of things. Download BetterBatteryStats click on other than click on partial wakelocks. Its some of your wakelocks that's causing the android system to drain the battery. With BetterBatteryStats it tells you which of those wakelocks is causing it and you can disable them.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app

[email protected] said:
Google “android system battery drain" it comes up with a lot of things. Download BetterBatteryStats click on other than click on partial wakelocks. Its some of your wakelocks that's causing the android system to drain the battery. With BetterBatteryStats it tells you which of those wakelocks is causing it and you can disable them.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
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finding alot of "answers" but none of which I think are the problem. I've attached a couple screenshots to show what is causing the wakelocks, not real sure what they are tho. this battery drain only happens when I leave wifi off, if wifi is on everything is perfect.

How strong is your phone's signal? If it does a lot of searching it'll use a lot of battery. With Wi-Fi off your apps will still try to connect to the internet. Face book I'd your biggest wake lock. Do you really need that to be trying to sync?

jd1639 said:
How strong is your phone's signal? If it does a lot of searching it'll use a lot of battery. With Wi-Fi off your apps will still try to connect to the internet. Face book I'd your biggest wake lock. Do you really need that to be trying to sync?
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my signal is almost always full bars with lte. I wouldn't think that one app would cause such a battery drain, even facebook. but no it's not that important, I can turn that off to see if it makes a difference. what about "AlarmManager" & "ActivityManager-Launch"?
edit: what I don't understand is this.. even with facebook on, whether it's syncing with wifi or my data connection it's wakelocking, so why such a huge difference when wifi is disabled and it's using my data connection instead?

I don't think facebook is the problem, I installed the other ge rom (clean&slim) and am having the same issue when wifi is disabled, and I haven't installed any apps except for es file explorer and nova launcher. I don't remember a problem with this on stock touchwiz. I have safestrap and goldeneye running on my girlfriends phone and the android system using battery when wifi is disabled isn't a problem.

deadenz said:
my signal is almost always full bars with lte. I wouldn't think that one app would cause such a battery drain, even facebook. but no it's not that important, I can turn that off to see if it makes a difference. what about "AlarmManager" & "ActivityManager-Launch"?
edit: what I don't understand is this.. even with facebook on, whether it's syncing with wifi or my data connection it's wakelocking, so why such a huge difference when wifi is disabled and it's using my data connection instead?
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If you're in an LTE border area your connection may be connecting in and out with LTE bands frequently causing the battery drain, as wifi is usually more stable. Generally the cause of battery drain is due to google services wakelocking the phone. Do you have Greenify downloaded? It's pretty nifty for hibernating apps, causing them to be completely shutdown until opened; preventing wakelocks. If you get the donate version you can even hibernate system apps (google services, etc). I doubt it's ROM related, but you can try another ROM and compare with BetterBatteryStats.
http://forum.xda-developers.com/wiki/Wakelocks
^ That will explain the AlarmManager & ActivityManager-Launch.

Br4nd3n said:
If you're in an LTE border area your connection may be connecting in and out with LTE bands frequently causing the battery drain, as wifi is usually more stable. Generally the cause of battery drain is due to google services wakelocking the phone. Do you have Greenify downloaded? It's pretty nifty for hibernating apps, causing them to be completely shutdown until opened; preventing wakelocks. If you get the donate version you can even hibernate system apps (google services, etc). I doubt it's ROM related, but you can try another ROM and compare with BetterBatteryStats.
http://forum.xda-developers.com/wiki/Wakelocks
^ That will explain the AlarmManager & ActivityManager-Launch.
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thanks for the info. I've tried both google edition roms but like I said.. this wasn't an issue on stock touchwiz and it's not an issue on my girlfriends phone running safestrap and goldeneye (we have the same phone). I do have greenify and I've added play music and maps to it as I noticed they would always run in the background. I also noticed in running apps under google services (with wifi disabled) something was running called locationmanager or similar to that. I had all location services turned off tho. I always have full lte service so I'm not sure why it would be going in and out.

Check your kernel wakelocks, your partial wakelocks seems not a big deal, actually on that screenshot IMO facebook is behaving very well.

CyberManiaK said:
Check your kernel wakelocks, your partial wakelocks seems not a big deal, actually on that screenshot IMO facebook is behaving very well.
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I just unplugged my phone so I'm waiting for updated battery stats. I'm almost positive it has nothing to do with any apps that I've installed. I have greenified alot of apps, and turned off some receivers in google services framework (mostly gtalk stuff) I also did the stuff in this guide: http://forum.xda-developers.com/showthread.php?t=2357417. I'm going to wait awhile to see if there's any improvement, then I was going to try adding some build.prop entries that I used on my LG Optimus L9, a couple are for saving power when the phone is asleep and helping the phone sleep better, and there is an entry to limit how often your wifi will scan. they seemed to help on the lg.

I live in a poor service area and I like to control my WiFi and data on off with juice defender or creative connections I think its called. Helps me a lot. May not solve your prob but might make things easier on you. There is also an app called LTE toggle that makes a on/off widget for LTE. Hope it helps if you try it.

Bubba Fett said:
I live in a poor service area and I like to control my WiFi and data on off with juice defender or creative connections I think its called. Helps me a lot. May not solve your prob but might make things easier on you. There is also an app called LTE toggle that makes a on/off widget for LTE. Hope it helps if you try it.
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so is this an issue other people have using google edition roms and having wifi disabled? this doesn't happen with stock touchwiz or even stock touchwiz roms so I'm not understanding what the problem could be. I shouldn't have to use another app to stop battery drain just because I don't have wifi enabled

deadenz said:
so is this an issue other people have using google edition roms and having wifi disabled? this doesn't happen with stock touchwiz or even stock touchwiz roms so I'm not understanding what the problem could be. I shouldn't have to use another app to stop battery drain just because I don't have wifi enabled
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I can't think of anything you haven't already thought of that could cause those issues. I love greenify also but is it possible you greenified an app that is fighting it and trying to connect? I've done that but not es bad as you are seeing. Those apps were a thought to make your life a little easier by not working about WiFi on here and off there. They work good for me for that issue. You probably won't like this but I'm running foxhound 2.0 with faux and killjoy/ccross breeder script and I have a hard time hitting 50% battery after 15 hours off the charger. I have to really game or to a lot to go below that. I also debloat heavily. I havent tried your Roms yet but I had similar results on Alpha ROM. I'll think about it some more though.

Bubba Fett said:
I can't think of anything you haven't already thought of that could cause those issues. I love greenify also but is it possible you greenified an app that is fighting it and trying to connect? I've done that but not es bad as you are seeing. Those apps were a thought to make your life a little easier by not working about WiFi on here and off there. They work good for me for that issue. You probably won't like this but I'm running foxhound 2.0 with faux and killjoy/ccross breeder script and I have a hard time hitting 50% battery after 15 hours off the charger. I have to really game or to a lot to go below that. I also debloat heavily. I havent tried your Roms yet but I had similar results on Alpha ROM. I'll think about it some more though.
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I tried foxhound and I liked it but the black theme was just too black for me and I don't really like the touchwiz theme. I love the google edition roms. and no at first I flashed a clean ge rom and didn't install any apps at all and I still had the problem. I've also installed ge roms from the i9505 forum and also had the problem. with wifi on I get atleast 2 days on a full charge and about 4 hours of screen on time.

I would suggest do the following charge up to 100% not 90% like your second post. after 100% charge, do a reboot when the phone boots again remove the charger and let it sit untouched for at least 4 hours preferably 8 hours. Then on better battery stats take a screenshot of "Other/unplugged" lets see how much the phone is awake and deep sleep, then take a screenshot of Kernel Wakelocks/unplugged and also partial wakelocks/unplugged
at first I didn't notice that on you second screenshot your stats are for 8% period 90% - 82% and that is a 1%/hr battery drain, is actually pretty good, sure not excellent but there are some that loose 2%/hr

I'm having the same problem with the ge ROM. Battery life seems to go quicker than stock touchwiz. As I like the GE roms interface and things you can do with it just hate the battery life.
4.2.2 Google Play Edition GS4 safestrap.

[email protected] said:
I'm having the same problem with the ge ROM. Battery life seems to go quicker than stock touchwiz. As I like the GE roms interface and things you can do with it just hate the battery life.
4.2.2 Google Play Edition GS4 safestrap.
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How much time are you getting of deep sleep and how much awake in a 8 hr period ?

Do you have exchange mail enabled? Sometimes I have the same problem with my battery life and that is the issue
Sent from my GT-I9505 using Tapatalk 4

[email protected] said:
I'm having the same problem with the ge ROM. Battery life seems to go quicker than stock touchwiz. As I like the GE roms interface and things you can do with it just hate the battery life.
4.2.2 Google Play Edition GS4 safestrap.
Click to expand...
Click to collapse
are you having the problem with wifi enabled and disabled? I only have the problem when my wifi is turned off, with wifi on I get great battery life with this rom

here's what I added to my build.prop last night and it seems to have fixed the 'android system' battery drain. it's back down to 2% now with wifi off and lte enabled.
Disable Sending Usage Data
ro.config.nocheckin=1
Deeper Sleep / Better Battery Life
ro.ril.disable.power.collapse=1
pm.sleep_mode=1
Wi-Fi to Scan Less Frequently
wifi.supplicantscan_interval=180