Develop Bugs

Galaxy Nexus spending too much time awake?

I've installed BetterBatteryStats a few weeks ago and have been monitoring constantly my battery life. What I've noticed is that my phone is spending too much time awake, sometimes almost twice the time the screen is on. I've tried different AOKP builds and CM nightlies both with stock kernel or franco's, but I always get the same wakelocks anyway. Of course I always clean-flash ROMs, and restore only downloaded apps with Titanium Backup. I'm currently running latest CM9 nightly with franco.Kernel r133. The pics and log attached are a few days old but I was on the same rom and kernel I have now. Consider it's one of "the best days", battery wise, I had since I bought this phone. So you can imagine what it's like in the "bad days"! Hope I can get some advice on what's the problem with my phone not deep-sleeping! Thanks in advance

ghostnote said:
I've installed BetterBatteryStats a few weeks ago and have been monitoring constantly my battery life. What I've noticed is that my phone is spending too much time awake, sometimes almost twice the time the screen is on. I've tried different AOKP builds and CM nightlies both with stock kernel or franco's, but I always get the same wakelocks anyway. Of course I always clean-flash ROMs, and restore only downloaded apps with Titanium Backup. I'm currently running latest CM9 nightly with franco.Kernel r133. The pics and log attached are a few days old but I was on the same rom and kernel I have now. Consider it's one of "the best days", battery wise, I had since I bought this phone. So you can imagine what it's like in the "bad days"! Hope I can get some advice on what's the problem with my phone not deep-sleeping! Thanks in advance
Click to expand...
Click to collapse
deep sleep is a function of the kernel i never had a problem with the stock cm9 kernel but i always recommend GLaDOS kernel. There are a lot of great kernels out there and Franco's which you are using is one of them. i however always get the best out of my phone with GLaDOS and i always come back to it. Just like i try all the roms and always come back to CM9.
give it a try you wont be dissappointed

His problem is not kernel related...
I just took a quick look at the log and it shows powermanager service has been keeping the phone awake for more than an hour...
Will check the log some more when i'm @home...
Verstuurd van mijn Galaxy Nexus met Tapatalk

As stated in my first post I've been trying different ROMs and kernels always having the same result... I keep getting this powermanager wake lock and I have no idea why. Along with that I'm always having the *backup* partial wake lock. I know that its cause is the data (settings and passwords) backup on Google servers, but I can't see why it should keep my phone awake for so much time. There are many more wake locks in the log as well. I'm really getting pissed of it. I really can't figure out what the cause might be. I doubt it's ROM or kernel related since tons of people are sharing my current setup and are not experiencing my issues. Any help you might give is very appreciated
Sent from my Galaxy Nexus using xda premium

I have the same problem as you and have since day 1. I've kept logs and used BBS and others. I have similar wake locks to you. I've never been able to figure it out. My battery life is OK, but not as great as others have claimed. I typically lose 2-3% per hour. Yours isn't terrible. My advice is to just try to forget about it. I'm convinced its a hardware thing that some phones have.
Sent from my Galaxy Nexus using Tapatalk 2

odin13 said:
His problem is not kernel related...
I just took a quick look at the log and it shows powermanager service has been keeping the phone awake for more than an hour...
Will check the log some more when i'm @home...
Verstuurd van mijn Galaxy Nexus met Tapatalk
Click to expand...
Click to collapse
+1 to glados kernel. I've tried many kernels and always come back to this as it gives the best performance and battery life for me.
I used to have the powermanager service drain with Franco too but after a wipe and installed glados kernel battery went from **** to awesome.
Next time when u do a clean install try not to install too many apps at one go. Then test the battery drain periodically.
Sent from my Galaxy Nexus using Tapatalk 2

droiddog said:
I have the same problem as you and have since day 1. I've kept logs and used BBS and others. I have similar wake locks to you. I've never been able to figure it out. My battery life is OK, but not as great as others have claimed. I typically lose 2-3% per hour. Yours isn't terrible. My advice is to just try to forget about it. I'm convinced its a hardware thing that some phones have.
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
I would say its a trial and error thing. Try different rom and kernel combos to find out which one works best for you. Mine loses 1% of battery every 3-4 hrs of idle in wifi and that is with everything sync on. If I had 2-3% drain per hr, which I had before and its because of the powermanager service too, I would do whatever it takes to hunt down the cause of the drain.
Sent from my Galaxy Nexus using Tapatalk 2

I have the same issue as well. Is there a specific app or service in background running and drain the battery? I cannot figure it out. Will Google fix this issue in coming patch?
Thank you.

Guess I'll try with other kernels then. There should be a new CM9 nightly soon. Once it's released I'll flash it keeping the stock kernel and test it for a few days. Let's see if that will solve my problem. Otherwise there's plenty of other ROM+kernel combos left to try Glad I bought my Nexus! There's a huge developer community so that I never run out of options when encountering issues However if any of you might help me resolve this issue in the meantime I'd be very glad

salivaman said:
I would say its a trial and error thing. Try different rom and kernel combos to find out which one works best for you. Mine loses 1% of battery every 3-4 hrs of idle in wifi and that is with everything sync on. If I had 2-3% drain per hr, which I had before and its because of the powermanager service too, I would do whatever it takes to hunt down the cause of the drain.
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
I have tried so many combos although I haven't tried glados' kernel. That power manager service is really what I think is killing my battery life. The crazy thing is that I have a thunderbolt that I mess with. I keep it in airplane mode with wifi on and pretty much the same apps loaded as my gnex. With that I lose about 1%/6hrs. I wish I could figure out what's causing the power manger drain. It seems like there are a bunch of wifi related kernel wake locks associated with it. It would be great if there was an app that showed the exact times of the different wake locks and what programs are associated with them. Anyway, I appreciate everyone's help.
Sent from my Galaxy Nexus using Tapatalk 2

mezzo onsilya
So I flashed latest nightly last night and I'm now on stock CM9 kernel... But the powermanager wake lock still persists... Left my battery at 92% while I was at work with wifi on. I went out for 20 mins with 3g on. In that little time my phone has lost 10% of battery all because powermanager service was running. Do you think it could be related to poor signal on 3g network?

Would a catlog show what's calling the PM API, keeping it awake for so long?

ics and battery life

At first my girlfriend had her Nexus S updated to ics and immediately we noticed a huge difference in how long her battery lasted and she is the furthest thing from a heavy user.
So when I heard that ics ws being released for our phone my first thought was i hope that what she experienced won't be what i do as we have a better phone right?
Well I am sad to say on a stock but rooted rom I experience the same lack of battery life as her.
Now I am no beginner to Android and have changed all sorts of settings available and nothing syncs on its own and when I unplug my phone from charging in the morning I will need to plug my phone in at night before bed as my phone will be completely dead.
I have to say I am very disappointed in the battery life of thr the stock rom and hope some good kernels make it out to help.
Sent from my SGH-T989D using XDA

Have you tried to find out which app/process is draining your battery? Better Battery Stats can help you identify what is using up your battery.
I had a big keep awake problem when i first installed stock ICS on my T989D. I did a full wipe of the phone and formatted my internal SD card (after backing things up of course), reinstall the same stock ICS and everything works great now. Battery life is about the same as before (stock GB w/ Synergy kernel), which is about 30 hours with moderate use.

Try CM 9. I get almost 2 days of battery life.
Sent from my SAMSUNG-SGH-T989 using xda premium

I've never had better battery life personally.
Sent from my SGH-T989D using Tapatalk 2

Though I am now on AOKP, I had great battery life on stock ICS as well. But, everything is subjective. How many email accounts are being synced? Do you have Facebook / Twitter / G+ updating every hour? Do you have news feeds continuously updating as well?
I have to agree with the poster above. Get Better Battery Stats and find the culprit draining your battery and work from there.

biggest thing draining the battery is the screen.
you can literally watch the battery usage drop 10-15% in a period of 10 to 15 minutes which is absurd when its set to low.
Sent from my SGH-T989D using XDA

Wait for kernel development. Its underway as we speak. It will make a significant difference.
Some battery saving tips:
- use juicedefender and set it to aggressive mode.
- use romtoolbox or other programs to underclock cpu frequency.
- also try using telus stock ics. Very good battery life.
Sent from my SGH-T989D using XDA

I have a brand new T989D (I'm new to Android, former iPhone user) and got the ICS upgrade the day I got it (9 days ago). Battery life is terrible, I'm lucky if I get 10 hours of moderate usage. The phone also tends to run very, very hot. Sometimes apps freeze and all I can do is either wait or, in some cases, remove the battery to reboot.
I'm open to any tips that will get this fixed! I haven't rooted yet (no time). I think I will try those wipe tools and reflash the stock ICS ROM.
First post btw - glad to have joined XDA!

Rooting takes 5 seconds. Follow the sticky. Use odin.
Run a custom rom.
Sent from my HTC Vision using xda premium

Android_Monsters said:
Rooting takes 5 seconds. Follow the sticky. Use odin.
Run a custom rom.
Sent from my HTC Vision using xda premium
Click to expand...
Click to collapse
Thanks, although a lot of howtos seem to be for GB since ICS only landed 9 days ago. Also there's a lot of conflicting information, so I prefer this one:
http : // galaxys2root.com/t-mobile-galaxy-s2/how-to-root-icsgb-on-t-mobile-galaxy-s2-sgh-t989/
Aaaannnd... rooted! \o/

anomy13 said:
Wait for kernel development. Its underway as we speak. It will make a significant difference.
Some battery saving tips:
- use juicedefender and set it to aggressive mode.
- use romtoolbox or other programs to underclock cpu frequency.
- also try using telus stock ics. Very good battery life.
Sent from my SGH-T989D using XDA
Click to expand...
Click to collapse
phone is a telus phone so its already using that rom.
setcpu us setup already but thinking perhaps to undervolt
Sent from my SGH-T989D using XDA

Stock, not rooted, my battery life is great. Something is using your battery up, and flashing some exotic kernel isn't going to change that. The stock kernel works fine. You'll want to find the root of the problem. Keep a real-time (or 1-5s interval anyway) eye on the phone's current (mA) usage, and when it's high for no apparent reason, you'll know that whatever is sucking your battery is doing it right then. That should help you characterize the problem. I've noticed when my WCDMA/GSM radio signal sucks, so does the battery life, so I either turn off the radio or switch to GSM only when I'm in that area. If your display is what's eating your battery, well a kernel can't stop that. Turn the brightness down, leave it on auto-brightness, or just deal with it if you need the display on all the time. But if tweaking and modding makes you happy, by all means...

firebane said:
biggest thing draining the battery is the screen.
you can literally watch the battery usage drop 10-15% in a period of 10 to 15 minutes which is absurd when its set to low.
Sent from my SGH-T989D using XDA
Click to expand...
Click to collapse
I have the same complaint. The "screen" battery usage is just unacceptable, especially compared to GB. My phone has been draining from a full charge for ~4.5 hours and my screen usage is 70% and battery is down to 65% with hardly 10 minutes of screen-on time.

I use an app called autostarts and you basically enable/disable apps that start running when certain events happen (phone startup, wifi being turned on, incoming call/sms/mms, other apps turning on, etc.). Just make sure you do your homework so you dont disable something critical. Hopefully this app works on ICS. You'll be surprised what different events make certain apps turn on automaticly. Screen, data/wifi, gps and bluetooth are the biggest battery drainers. No matter what Rom you are on if you don't keep control of those items your battery will drain fast. Keep ur screen on auto, let it go off @ 15 seconds ( you have to be pretty used to your phone for that setting not to annoy you), turn OFF your data or wifi when not in use. With bluetooth and gps...well u know that when you use them your battery is gonna drain faster than normal...just keep that in mind. Its all pretty much common sense.
I'm not going to tell you how much battery time I get cuz its nonsense. There are times my phone lasts till the next day and others Im charging it by sundown. Then again Im still on Juggs n Darkside kernel and Im gonna wait a bit still b4 I make the switch. Also don't go by what other people say on battery life cuz if you might not get the same results on that ROM. Everyone of our devices is unique and acts different. Everyone user uses their phone different. You can't define "light, moderate, heavy" use so don't go by that either.
Sent from my Blutiful SGSII w/Juggs.

Duel core vs single core
Larger brighter screen
Processor is clocked higher
Radio is connected to hspa+ network
Tw vs Samsung.
These things make a difference
Sent from my Galaxy Nexus using xda premium

After upgrading to ICS stock unrooted battery life sucked (5-6hrs). I did the whole remove battery, factory reset and still sucked.
Broke down rooted (still stock), downloaded batterycalibration from play, followed the instructions. Easily get over 24hrs before having to charge again. and when I say easily, I mean I still have over 25% left.

Get a gnex extended....maybe a bad battery
Sent from my SGH-T989 using xda premium

AOKP build 40, latest eugene373 streamline kernel. I went 9 hours earlier it earlier and it was still at 70% You will see a difference!!
Sent from AOKP Goodness :-D

mrrobc97 said:
Im not going to tell you how much battery time I get cuz its nonsense. .........Everyone user uses their phone different. You can't define "light, moderate, heavy" use so don't go by that either.
Click to expand...
Click to collapse
Bingo. Vastly different battery life between ROM's is generally BS. Every once in a great while one of these threads has merit but typically someone saying ROM X had "Killer" battery life is clueless and drinking the koolaid. Then a placebo effect takes place. And definitely someones "Heavy" use is subjective. If someone says they get a day out of an android phone they are not heavy users by my definition. It doesn't happen with heavy use. Perhaps the Razr Maxx or another phone with a very large battery but I've had 5 Android phones. If I get past noon it's because I am not using my phone that much and forget about a full day. It's never happened in the 4 years I've used google OS phones. Never.

jonjon68 said:
Bingo. Vastly different battery life between ROM's is generally BS. Every once in a great while one of these threads has merit but typically someone saying ROM X had "Killer" battery life is clueless and drinking the koolaid. Then a placebo effect takes place. And definitely someones "Heavy" use is subjective. If someone says they get a day out of an android phone they are not heavy users by my definition. It doesn't happen with heavy use. Perhaps the Razr Maxx or another phone with a very large battery but I've had 5 Android phones. If I get past noon it's because I am not using my phone that much and forget about a full day. It's never happened in the 4 years I've used google OS phones. Never.
Click to expand...
Click to collapse
Yes exactly, I hate when people post screenshots of their phone getting 24+ hours, I'm there thinking "well obviously they don't use their phone alot". There is no way in hell i could get 24 hours no matter what rom/kernal I use. Im just happy when my phone can make it till I get home at night
Sent from Flip's SGS2

SOLVED: ICS Upgrade Myth Dispelled - Factory Reset Does Not Fix Battery Drain

EDIT: Please read this entire thread, there's some good info. Every phone and every situation is different, however it turns out my battery drain was the result of my phone not hitting "Deep Sleep". The culprit was my SD card, if you're experiencing battery drain after upgrading to ICS try removing your SD card and restarting your phone, use the app CPU SPY to verify your phone is now hitting "Deep Sleep". Again please read on, amidst some trolls there is more detailed information.
SIDENOTE: This being my first thread I have to say on the whole I really like this community!
I never thought I'd be that guy saying don't upgrade to ICS, because the OS is so slick and fun. However the glitch with the battery drain nullifies it's value. My brand new phone, less than two months old will die before the end of the day without me making a single phone call. I'm talking maybe an 1 to 1.5 hours of use texting, checking mail, surfing, and my battery now runs dead before I even get home from work. If you go into Settings > Battery it will show you the break down of what's using what. At the top should be your display, it takes a lot of power for to run the ultra bright display and this is what I saw before the ICS update. After the update these are the numbers:
Android OS: 58%
Screen: 18%
Cell Standby: 10%
Phone Idle: 7%
Android System: 2%
The OS is taking 58% of the battery?!? This is crazy!The buzz going around the net is if you do a factory reset it will fix the issue, well it does, but only for a very short time.
I went through the pain and formatted my SD card, then did a factory reset on my phone lost everything, well I backed it up, but still was a long process. After all that I loaded up my apps, and everything looked great. If you I went into the battery break down Screen was back at the top and the Android OS was several rungs below. I was SO happy! It was worth it after all.... THEN
Imagine my chagrin I woke up this morning to a full charge. Didn't make one phone call, just checked a couple emails, and being only a HOUR into my day my battery is at 76%!! I look back at the battery break down, and there's Android OS sitting at the top, draining double the battery juice as the screen display. I mean this almost makes ICS useless, what good is this great cell phone if you have to be tethered to a power cord. WTF!! Point being, don't bother resetting your phone, it DOES NOT permanently help. If you haven't upgraded to ICS don't, we're all just screwed until they come out with a fix, and you see how long it took them just to get ICS.
I don't know what happened between last night and today, but my hope is some dev person will read this and it will help them pinpoint the issue.

Did you backup and restore your app data as well?
Sent from my SPH-D710 using xda premium

squshy 7 said:
Did you backup and restore your app data as well?
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
Nope, the only thing I backed up was pics, music, and video, and I combed through those folders to make sure there were no sys files.

It sounds more like your battery is going bad. You can go to Sprint store and they will test your battery for you.
You might also want to get a battery monitoring program and see what is using the battery up.
Sent from my SPH-D710 using xda premium

its not a ics glitch its your phone lol.. ive never had this issue.. plus with the source kernels coming out and with roms/tweaks already out youcan increase battery life yourself.. because your battey cant keep a charge you bash ics? go back to gingerbread then lol. i can use my phone for two hours and leave it off charger over night and still have at least 50% charge
Sent from my SPH-D710 using XDA

nim6us said:
Android OS: 58%
Screen: 18%
Cell Standby: 10%
Phone Idle: 7%
Android System: 2%
QUOTE]
It looks like your phone may never be going into deep sleep. Get CPUSpy from Google Play and see what is going on.
Click to expand...
Click to collapse

theheathen said:
It sounds more like your battery is going bad. You can go to Sprint store and they will test your battery for you.
You might also want to get a battery monitoring program and see what is using the battery up.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
Having a bad battery would not make Android OS use the majority of his power though. I have had this problem myself in the past and never did figure out exactly what stopped it. Running Blue Kuban now and my battery life, though never great, is reasonable. FYI, I also run Juice Defender which makes a substantial difference for me.

Running pretty much stock ICS FF18, just have agat safe recovery/kernal installed. Yesterday I left Wimax on all day and when I went to charge it last night it had about 28% left. I made several phone calls, many texts/whatsapp messages, reading emails and using twiitter/fb a couple of times.
The battery life on this is not the greatest, for example, I forgot to turn off wifi when I left my house the other day, well my battery dropped about 30% in just a few hours. I now find that just leaving Wimax on all day is actually better and pretty much on par with just having 3G on, I prefer wifi at home but if I forget to turn it off it kills my battery.
I was so used to Blazers 4.1 battery life, the battery lasted forever and I could leave wifi, bluetooth etc on all day. Just hoping for the ROMs to start incorporating the recently released source so that we can get better battery life on these great ROMS.

This is all known information. That's why you use custom roms that have much better battery life.
Sent from my SPH-D710 using Tapatalk 2

I had same issue here with custom rom FF18 touched by SGS3. Went back to EL29, FF18 is glitchy and slower anyway.

Confirmed, factory reset battery drain exists.

OP, why don't you put up a screenshot of your battery graph? The expanded one, not the one that lists the percentages.
There are a number of reasons why this could be happening. One of my biggest drainers on CM9 was Google login service, turned out the "keep this device backed up with Google" in the backup and reset settings was completely preventing my phone from going to sleep. This is but one example.
Sent from my SPH-D710 using xda premium

I am getting decent battery life with the 'super galaxy rom' almost on par with the caulkin el29 build I was using... LOVE it!
Sent from my SPH-D710 using xda app-developers app

You guys need to quit crying wolf and figure out what is really draining your battery. Maybe your google drive is syncing, or you have facebook running, or email is pulling too often, ICS does not kill battery rogue apps and wrong settings do.
Try this https://play.google.com/store/apps/details?id=com.asksven.betterbatterystats (search xda for other versions)
and this https://play.google.com/store/apps/details?id=nextapp.systempanel&hl=en
Figure out whats waking up your phone and running when its not supposed to be and until you have data STFU

someguyatx said:
You guys need to quit crying wolf and figure out what is really draining your battery. Maybe your google drive is syncing, or you have facebook running, or email is pulling too often, ICS does not kill battery rogue apps and wrong settings do.
Try this https://play.google.com/store/apps/details?id=com.asksven.betterbatterystats (search xda for other versions)
and this https://play.google.com/store/apps/details?id=nextapp.systempanel&hl=en
Figure out whats waking up your phone and running when its not supposed to be and until you have data STFU
Click to expand...
Click to collapse
seconded, attached is the battery stats for an average day for me on ff18 based goodness.... these "problems" are all able to be resolved rather easily with very little effort... this is not a paid tech support forum and no one is going to spoon feed you when solutions have been posted countless times in countless hysterical threads like this
Sent from my SPH-D710 using xda app-developers app

My phone is not rooted and this is the battery life I'm getting after the OTA with light use. With regular use I get at least 25-30 hours.

carole6m said:
My phone is not rooted and this is the battery life I'm getting after the OTA with light use. With regular use I get at least 25-30 hours.
Click to expand...
Click to collapse
Just curious, what's your display time. From the looks of it, doesn't seem like much. But still, that's pretty impressive nonetheless.
Sent from my SPH-D710 using xda app-developers app

demonlordoftheround said:
nim6us said:
Android OS: 58%
Screen: 18%
Cell Standby: 10%
Phone Idle: 7%
Android System: 2%
QUOTE]
It looks like your phone may never be going into deep sleep. Get CPUSpy from Google Play and see what is going on.
Click to expand...
Click to collapse
So if it's not going into deep sleep what's the fix?
daniel4653 said:
This is all known information. That's why you use custom roms that have much better battery life.
Sent from my SPH-D710 using Tapatalk 2
Click to expand...
Click to collapse
I'm a super n00b, if you or someone could link me to the best ICS ROM the cool kids are using I can figure out how to install it.
-----
However bottom line, before ICS upgrade my battery life was great and my Android OS was not 50% of my battery power. I'm not rooted or have any custom anything, after the ICS upgrade my battery drains rapidly. I'm willing to do what it takes to get it fixed, however I do fully put the blame on ICS, I'm using stock everything, the battery is good, something in that update is screwing my battery.
All I was trying to do was give developers, a little insight that the factory reset temporarily fixed the issue, for 3-4 hours before bed I monitored it and everything was good. So hopefully this will help turn the light bulb on in someone else's head.
Click to expand...
Click to collapse

ICS works really well for some, but for others it renders the phone completely useless. I'm one that it won't work for as well. The battery life is **** and 4g connectivity is non existent. As a result, I'm back to EL29/GB until a patch is made.
I spent 4 days after teh OTA was released trying to find fixes, trying to make it work, using different kernals and modems, but had no success. I posted about it many times and more or less was told that I was doing it wrong.
On that not, good luck mate. Here's to hoping for a patch from samsung soon. :good:

nim6us said:
demonlordoftheround said:
So if it's not going into deep sleep what's the fix?
I'm a super n00b, if you or someone could link me to the best ICS ROM the cool kids are using I can figure out how to install it.
-----
However bottom line, before ICS upgrade my battery life was great and my Android OS was not 50% of my battery power. I'm not rooted or have any custom anything, after the ICS upgrade my battery drains rapidly. I'm willing to do what it takes to get it fixed, however I do fully put the blame on ICS, I'm using stock everything, the battery is good, something in that update is screwing my battery.
All I was trying to do was give developers, a little insight that the factory reset temporarily fixed the issue, for 3-4 hours before bed I monitored it and everything was good. So hopefully this will help turn the light bulb on in someone else's head.
Click to expand...
Click to collapse
I have a thread stickied in general called "welcome to he et4g" that might be a good place for you to start, from there you'll figure out what you need to search for to learn more... there is no best rom its a matter of opinion, so read the dev threads and see what looks good to you... bottom line without seeing more information from you I would guess you have something running in the background preventing deep sleep, as mentioned earlier... also are you leaving wifi, Bluetooth, etc on? That'll kill your battery quick... do you live in an area with poor sprint signal? Constantly searching for service will also drain you battery. What do you have to set up to sync? And how often? There are easy ways to prolong battery life on ff18 and the vast majority of people complaining about battery life have not taken positive steps to learn more and resolve their own issues... it can be done, good luck
Sent from my SPH-D710 using xda app-developers app
Click to expand...
Click to collapse

[Q] Help!!! Battery problem makes me wann commit suicide.

I really am close to killing myself due to sadness and disappointment because of my phone's battery life. lol. I have a Galaxy Note 2(4.1.1 ver) and my battery lasts for 12-16 hours. I use it mostly for Facebook, Google, Viber and YouTube. I have other typical social networking/comm apps (YM,Skype, Instagram,Twitter) but I dont use them often. I have less than 10 games (Temple Run2, Angry Birds, Diamond Dash) but I dont play for more than 15 mins. I have observed that when my phone is NOT in use, it decreases by 7-10% per hour (sometimes 1% per minute on idle) during the day. At night, before I go to sleep, it is a fully charged phone and when I wake up, 25% of the battery's life is gone within 8hrs of not touching it even to check the time. I dont know if its the normal draining rate of the battery, if its a factory defect on the battery or the phone itself, or if it is the app or android system. They say you need to turn off the location or something but I couldn't seem to find it. My phone is just 4 days old, or maybe 5. Im hoping when the phone turns a week old, things will be better. Or should I try to kill myself now? Any possible solutions???
PS. Please try to use "simple" instructions or terms. I really am not good about technology.

Update to the latest firmware.. and then do a factory reset.. do take up back up before doing the factory reset. what is your screen time? post screen shots of your battery stats.. and committing suicide is not going to solve your problem.. but still remarkable that someone considers this over battery woes..

please say to us which apps are you using because there are lots of draining apps. sqich off gps brightness at the minimum values and so on if you haven't done it yet
hope it worked to you
Enviat des del meu GT-N7100

Here you go gentlemen

It doesn't say much, I mean are you playing games such as need for speed or similars? is you brightness at maximum? I use the battery saving feature of the phone and I have to say that there is no difference in performance but there is in the battery I mean it last a more than in "normal" mode. if you already tried it at it still has that draining do full wipe and flash a new rom.
Hope it was useful
Enviat des del meu GT-N7100

Good Lord! You wanna suicide for some ****in phone's ****in battery life? Come on man. This is a simple gadget, not your child or family. Use it heavy, have fun recharge it, throw it when you are done, then use it when you in need again.
Anyway, I think you are using 3G, turn it off if you don't need it, you'll notice massive battery life increase, but if you can't disable it then I will say get used with that.
There are two simple things,
With 3G- Moderate battery life. You CAN NOT do anything to increase it.
With 2G- Solid battery life.
PS: IMO, 4.1.2 has even bad backup.

Elai012488 said:
Here you go gentlemen
Click to expand...
Click to collapse
your phone has a decent battery life... at 50% your screen time is almost 3 hours which is good enough... Well now live your life:fingers-crossed: and enjoy Galaxy Note 2.. it's brilliant :good:

what a wicked world we are living ... suicide over battery issue?
try install betterbatterystats from xda ... it'll let u know which rogue apps sipping away your battery juice :good:

You must have high expectations, 12-16 hours for a charge isn't that bad, especially if you're actually using your phone a decent amount. You won't be getting a week's worth of battery at a time.

Nice thread!! u got everyone attention..lol
like someone in this thread already mention, turn off 3G when not use..Go to task manager & switch off all running background app..clear memory..Do it b4 u go to bed every night..Good luck!!
Sent from my GT-N7100 using xda app-developers app

1st look seems like the blue bar is always on. Tap on the graph and see the breakdown further, whether is it awake due to screen on or not.

Lol. I was kidding you guys!!!! Well im not on 3g and I think I ticked the option gsm only on my phone. Tried clearing rom and I always make sure to end all activities. On that 50% I never played any games. Jisy browsing on fb and google. Just dl the betterbatt thingView attachment 1704752
Sent from my GT-N7100 using xda app-developers app

Okay. Here it is
Sent from my GT-N7100 using xda app-developers app

Elai012488 said:
Okay. Here it isView attachment 1704787
Sent from my GT-N7100 using xda app-developers app
Click to expand...
Click to collapse
looking at your pic... it looks like some rogue apps is keeping your phone awake eventho your screen is off

So how can I find the culprit? Charged my phone and will show you shots from betterbattery laters. Please guys,help me figure it out.

What does BBS say under "Process"?
Also, check the built-in process manager: Long-press the home button and click the pie chart. Switch to the first tab.
Is there an app where the CPU percentage changes even though the app should be sleeping and steady at 0.00%? I see that quite frequently. Mostly by the stock browser and the XDA premium app. Thats how I found the worst ones

You've posted 11 minute old stats, post from a full charge cycle.
Sent from my GT-N7100 using Tapatalk 2

Please read forum rules before posting
Questions go in Q&A
Thread moved
Thank you for your cooperation
Friendly Neighborhood Moderator

ABHIII said:
and committing suicide is not going to solve your problem
Click to expand...
Click to collapse
It would. Well, she wouldn't care as much anyway....

Well op is right.
I have wifi gps 3g sync always on with close to his usage and I get 3 days straight.
Lol.
Overnight 1% drain max 2%
I think the op has got some reason to worry.
Other than that suicide is not recommended.
Sent from my GT-N7100 using xda app-developers app

[Q] CM 10.1.2 Terrible Battery Life?

Hello,
I have had Cyanogenmod 10.1.2 for awhile now and i have only had one issue. My battery life has gone down dramatically compared to the stock touchwiz rom. I usually take my phone to school on standby and airplane mode and i loose about 20% in 3 hours. If I use the stock rom I loose about 4-7% in 3 hours. I looked in the battery settings and it said Screen, Google Play Services, and Cell standby took up the most. I'm thinking it's the kernel but I do not want to take the chance of flashing a new one. If there is any other solution please let me know.

hmaster1332 said:
Hello,
I have had Cyanogenmod 10.1.2 for awhile now and i have only had one issue. My battery life has gone down dramatically compared to the stock touchwiz rom. I usually take my phone to school on standby and airplane mode and i loose about 20% in 3 hours. If I use the stock rom I loose about 4-7% in 3 hours. I looked in the battery settings and it said Screen, Google Play Services, and Cell standby took up the most. I'm thinking it's the kernel but I do not want to take the chance of flashing a new one. If there is any other solution please let me know.
Click to expand...
Click to collapse
you might need to re calibrate your battery.
also, check if you have any wake locks using better battery stats.

Here's a recent thread where they are working on similar issues. Won't be exact to your situation but may help you to track it down on your own.
http://forum.xda-developers.com/showthread.php?t=2517494
Also, in the stickies, I suggest you read Woody's battery thread for a better understanding of some common issues and power saving tricks.
Sent from my SGH-T999 using Tapatalk

ayeitschris said:
you might need to re calibrate your battery.
also, check if you have any wake locks using better battery stats.
Click to expand...
Click to collapse
I am not familiar with this, can you please explain how to do this?

DocHoliday77 said:
Here's a recent thread where they are working on similar issues. Won't be exact to your situation but may help you to track it down on your own.
http://forum.xda-developers.com/showthread.php?t=2517494
Also, in the stickies, I suggest you read Woody's battery thread for a better understanding of some common issues and power saving tricks.
Sent from my SGH-T999 using Tapatalk
Click to expand...
Click to collapse
Thank you for this info. I am reading through it right now and i have found some interesting things. I will let you know if I have a question.

hmaster1332 said:
Hello,
I have had Cyanogenmod 10.1.2 for awhile now and i have only had one issue. My battery life has gone down dramatically compared to the stock touchwiz rom. I usually take my phone to school on standby and airplane mode and i loose about 20% in 3 hours. If I use the stock rom I loose about 4-7% in 3 hours. I looked in the battery settings and it said Screen, Google Play Services, and Cell standby took up the most. I'm thinking it's the kernel but I do not want to take the chance of flashing a new one. If there is any other solution please let me know.
Click to expand...
Click to collapse
If you are putting the phone in Airplane mode, make sure the Location Services are off.

using themes and live wallpaper also is bad for battery. really bad!

i installed CM10.2 on my old Samsung Captivate and gave to my mom to use. Turned everything off and I'm getting excellent battery life. She gets 4-5 hours of talk time and still has 70+% at the end of the day.