[Q] CM 10.1 Battery issues. - T-Mobile Samsung Galaxy S II SGH-T989

Greetings, its been a while since ive visited the forums, but i did a bit of searching and didnt find anything. I upgraded to CM10.1 a couple of weeks ago and have been having terrible battery life compared to CM10. At first i figured it might be just a new rom (i had to do a full wipe before everything started working normally) and the battery had to normalize. But no, its been 2 weeks or so and 3 updates and the same crappy battery life. I looked at the battery usage and this is from today, but it was the same last friday when i started looking at it.
I can believe 15 mins, or 20 mins of screen time. Not 45. Ive been at work... working. So i dont know, maybe its a bug, but im barely making a work day without having to plug the phone in. Can anyone help out?

Try a new kernel. 10.1 is a bit of a battery killer. All stock-like ROMs are. I use LeanKernel, but I don't believe he utilizes your s2. Try ktoonsez?
Sent from my SGH-T999 using xda app-developers app

Related

[Q] Anyone considering returning the E4GT due to bad battery life?

I am one of the unfortunate souls who is experiencing terrible battery life due to the AndroidOS bug. I feel like I spend half my waking hours trying to figure out what is causing it and doing different things to my phone improve my battery life.
I'm definitely getting sick of it and while I realize that Samsung/Sprint may eventually come out with a software update that fixes the problem, I'm not sure I'm willing to wait since it could take months (and the issue was supposedly fixed for GS2 phones in 2.3.4).
At this point, I'm considering going back to the Moto Photon--it's battery life is simply amazing. My only issue with the Moto is its unusable camera.
Anyone else getting as frustrated as I am and considering jumping ship to another phone?
What have you done to fix it?
Are you saying that you still have the bug even aftera factory reset ?
Why not just take it back and have them give you a new one since you obviously have a defective phone?
Also how many hours are you actually getting out of the battery?
I don't see any other phone worth switching to and I have had them all. Each with their own specific problem. But this one here is as good as it gets
Sent from my SPH-D710 using xda premium
nabbed said:
What have you done to fix it?
Are you saying that you still have the bug even aftera factory reset ?
Click to expand...
Click to collapse
I've tried just about everything that has been mentioned in the AndroidOS/battery life thread (reset, wifi, autosync) but I'm still getting only 12 hours of battery life on a good day, 8 hours on a bad day
I might try exchanging the phone, but I'm hesitant to do so due to the LOS bug (I have not experienced this with my phone as of yet).
Honestly, while I love the phone in many other ways, I'm about to throw the thing out the window since 8 hours of battery life is simply not acceptable to me
limeaid said:
but I'm still getting only 12 hours of battery life on a good day, 8 hours on a bad day
Click to expand...
Click to collapse
That doesn't mean anything to me. What's the display on time? How good/bad is the cellular signal?
Exchange it bro. Ive had two of these phones so far and none had this problem. I'm getting like 24-30 hours battery with like 4-5 hours screen on time. This phone had awesome battery. Download an apps called better battery stats. This will show wakelocks and processes that are draining the battery. Good luck man.
The Evo3D Killer!!!
nabbed said:
That doesn't mean anything to me. What's the display on time? How good/bad is the cellular signal?
Click to expand...
Click to collapse
On a good day, the display is on for less than 30-45 min. On a bad day, the phone display time is somewhere between 90-120 minutes.
I pulled 16 hours ojt of my battery yesterday with over 12 on wifi and i was at 40 percent. I have to use wifi at work as i have no signal and when i do get signal its roaming. I would say that my conditions at work are far from ideal but this phone is great. My old phone would die before 1130(evo shift).
Sent from my SPH-D710 using xda premium
limeaid said:
On a good day, the display is on for less than 30-45 min. On a bad day, the phone display time is somewhere between 90-120 minutes.
Click to expand...
Click to collapse
Yeah bro that's awful. I would take that back immediately. There is no sense in that. U definitely have a bug in that phone. Good luck.
The Evo3D Killer!!!
return it.
mine doesn't seem to get the android os bug unless i'm on a custom kernel. 1 week stock, no problems, 3 days on custom problems each day, back to stock + root and no problems for 48 hrs.
i still have to be 100% sure that my phone didn't like the kernel though so another test will be coming up after a few more days of observation.
madsquabbles said:
return it.
mine doesn't seem to get the android os bug unless i'm on a custom kernel. 1 week stock, no problems, 3 days on custom problems each day, back to stock + root and no problems for 48 hrs.
i still have to be 100% sure that my phone didn't like the kernel though so another test will be coming up after a few more days of observation.
Click to expand...
Click to collapse
I had the issue with the stock kernel and custom kernels. I'm just going to hold out until we can get a AOSP build and hope that using as little of Samsung's code fixes it.
madsquabbles said:
return it.
mine doesn't seem to get the android os bug unless i'm on a custom kernel. 1 week stock, no problems, 3 days on custom problems each day, back to stock + root and no problems for 48 hrs.
i still have to be 100% sure that my phone didn't like the kernel though so another test will be coming up after a few more days of observation.
Click to expand...
Click to collapse
I'm on stock and have nothing out of the ordinary installed. Out of curiosity, do you have a google account with full sync turned on?
Lol 8 12 hours isn't bad with a stock battery and 4.5 inch screen. If you are in a poor reception area it could be that. Otherwise you have alot of Apps running in the background.
My advice : root it and extended battery.
Sent from my SPH-D700 using xda premium
limeaid said:
I'm on stock and have nothing out of the ordinary installed. Out of curiosity, do you have a google account with full sync turned on?
Click to expand...
Click to collapse
I average 15-20 hours easily on a charge, with a full sync google account
Everything Sync'd Listed below:
- Google+ Notifications
- Music
- Books
- Contacts
- Gmail
- Picasa Web Albums
- Calendar
If anything else can be Sync'd I have not run across it. I also have my Tapatalk set to notify me of PM's, and updates to Subscribed topics, I removed the accuweather widget because it only updates every 3 hours and installed Weatherbug Elite and set it to update every 30 minutes. On top of all that I browse the web regularly to visit sites that are websense'd at work, and I play dungeon hunter 2, and asphalt 6 on my lunch break. At home the phone sits on my desk until its time to pass out, only used for my Rift Mobile authenticator.
This is a real bug, with android
the system/0 process goes crazy and chews up the battery.
I get about 12 hours with everything disabled (other than gmail sync) and suspend/0 chews up battery
well documented here
http://code.google.com/p/android/issues/detail?id=16721
it's a gingerbread issue, if you haven't experienced on the galaxy, you will soon
I'm also considering returning this great phone with crappy software until google releases a version of android that works.
by that time there may be a new "best android phone"
Why does the bug seem to affect the gs2 more than other phones? For example, I've never seen it mentioned on the photon forums
ajamer said:
This is a real bug, with android
the system/0 process goes crazy and chews up the battery.
I get about 12 hours with everything disabled (other than gmail sync) and suspend/0 chews up battery
well documented here
http://code.google.com/p/android/issues/detail?id=16721
it's a gingerbread issue, if you haven't experienced on the galaxy, you will soon
I'm also considering returning this great phone with crappy software until google releases a version of android that works.
by that time there may be a new "best android phone"
Click to expand...
Click to collapse
Sent from my SPH-D710 using XDA App
ajamer said:
This is a real bug, with android
the system/0 process goes crazy and chews up the battery.
I get about 12 hours with everything disabled (other than gmail sync) and suspend/0 chews up battery
well documented here
http://code.google.com/p/android/issues/detail?id=16721
it's a gingerbread issue, if you haven't experienced on the galaxy, you will soon
I'm also considering returning this great phone with crappy software until google releases a version of android that works.
by that time there may be a new "best android phone"
Click to expand...
Click to collapse
I didn't have this problem on my evo and I don't have it on my gs2.
Sent from my SPH-D710 using Tapatalk
i use my phone a lot while im at school throughout the day , i last using wifi and 3g, and if needed i can do a quick charge while i study in the car but i lasted to 60% using 3g for a few hours

[Q] Terrible Battery Life (>60% drain in an hour)

Recently I have been getting horrible battery life on my Verizon Galaxy Nexus. I am running the stock 4.1 ROM but I have root.
Here is an example that just happened. I am just browsing the internet on my phone, have full 4G coverage but have been on it constantly for this test but the battery drained >60% in a little over an hour!?
Also I had manually turned the brightness all the way down to not wake up my girlfriend.
WiFi and Bluetooth are off too.
This is crazy! Does any one else get this bad of battery drain?
Enable WiFi as it uses less power than 4g.
Also, it seems as if you are playing a game there...which is probably sucking data up and our screens use a lot of power.
Also check to see if any rogue apps are running and when they are running. I use Autostarts in the market to disable apps running in background unnecessarily.
Sent from my Galaxy Nexus using xda premium
its kinda normal i mean not a surprise least to say. 4g lte will do that to the battery especially weak 4g signal while browsing the internet. I get about 10 to 15 hours on extended battery that i got free from sprint. 1st thing is call Verizon and explain that you have very bad battery drain and than 4g is unusable so that you can maybe get a free extended battery. i don't know if Verizon will do that but its worth a try. 2nd i turned off the NFC chip/android beam because i got no use for it and it seems that battery drains little bit slower. 3rd don't leave your battery/cellphone on charging cable all night. its not good for the battery, unplug it when its fully charged and you can leave it on standby because it doesn't drain much on standby. 4th turn down brightness i mean way down lol. I don't use automatic brightness which to me seems to drain battery because when you are outside it adjust the brightness to full/maximum. 5th I only use lte when i am downloading something, most of the time its off. 6th i set my screen sleep to 30 seconds. before its was 2 minutes and battery was draining like crazy. small changes make big difference. try it, hopefully it helps.
Use AK kernel and 4.2 xylon ...best battery and performance... perfect combination
Sent from my Galaxy Nexus using xda premium
What is ak kernel never heard of it, Franco,trinity an glados maybe, xylon are you kidding that just a sh1tty kang of cm an aokp ported to aosp 4.2.1.
Sent from my Galaxy Nexus using xda premium
slayr76 said:
What is ak kernel never heard of it, Franco,trinity an glados maybe, xylon are you kidding that just a sh1tty kang of cm an aokp ported to aosp 4.2.1.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Xylon is one of the better 4.2.x ROMs out there.
doomed151 said:
Xylon is one of the better 4.2.x ROMs out there.
Click to expand...
Click to collapse
I personally prefer pa and cm, once they are updated an stable on 4.2.1 they will take over once again, you always get unofficial ported versions early like xylon and jellybro but they are short lived, they are only for people who can't wait an need a 4.2.1 cherry picked rom right away, in couple of weeks xylon will disappear as everyone moves back to cm an pa, I remember jellybro cm10 unofficial was all the rage for a month until cm made CM10 official last time, xylon is just doing what jellybro has always done releasing an early ported version until its official from the bigger groups.
Sent from my Galaxy Nexus using xda premium
slayr76 said:
I personally prefer pa and cm, once they are updated an stable on 4.2.1 they will take over once again, you always get unofficial ported versions early like xylon and jellybro but they are short lived, they are only for people who can't wait an need a 4.2.1 cherry picked rom right away, in couple of weeks xylon will disappear as everyone moves back to cm an pa, I remember jellybro cm10 unofficial was all the rage for a month until cm made CM10 official last time, xylon is just doing what jellybro has always done releasing an early ported version until its official from the bigger groups.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
I can mostly agree with that. I personally prefer CM too but even on 4.1.2 I stick with Jellybro because it always has new stuff merged days earlier compared to official CM nightlies.
I go with Xylon right now because it's the most frequently updated ROM, has most features ported over and the dev is very friendly.
I would look at any recently updated or newly installed apps if you think there is a problem. But constant usage for an hour will eat up a ton of battery. Did you have a browser tab open that was constantly pulling data (i.e. using a lot of resources)?
slayr76 said:
What is ak kernel never heard of it, Franco,trinity an glados maybe, xylon are you kidding that just a sh1tty kang of cm an aokp ported to aosp 4.2.1.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
AK
http://forum.xda-developers.com/showthread.php?t=1883298
Sent from my Galaxy Nexus using xda premium
Please read forum rules before posting
Questions go in Q&A
Thread moved
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Friendly Neighborhood Moderator
Battery Life Stinks!
shark1987 said:
Recently I have been getting horrible battery life on my Verizon Galaxy Nexus. I am running the stock 4.1 ROM but I have root.
Here is an example that just happened. I am just browsing the internet on my phone, have full 4G coverage but have been on it constantly for this test but the battery drained >60% in a little over an hour!?
Also I had manually turned the brightness all the way down to not wake up my girlfriend.
WiFi and Bluetooth are off too.
This is crazy! Does any one else get this bad of battery drain?
Click to expand...
Click to collapse
Oh yea, my battery life is horrible! And that is with a brand new extended battery ( 2100, not 3800 ). I get about 4 hours out of it, and that is with 4G off, Wifi off, BT off, 1 widget and a battery saving program running ( One Power Guard ). I have basically had to "un-smart" the phone, which means turning off all the cool features I bought it for. I have found I have a phone with the USB charging port problem, so I am going to fix that and see if it gets better. If not, not sure what I am going to do. But I see such a wide range of responses to the battery question ( some get 12 hours, some get 4 hours ) that I am wondering if they updated the hardware at some point.
gsmitchell said:
Oh yea, my battery life is horrible! And that is with a brand new extended battery ( 2100, not 3800 ). I get about 4 hours out of it, and that is with 4G off, Wifi off, BT off, 1 widget and a battery saving program running ( One Power Guard ). I have basically had to "un-smart" the phone, which means turning off all the cool features I bought it for. I have found I have a phone with the USB charging port problem, so I am going to fix that and see if it gets better. If not, not sure what I am going to do. But I see such a wide range of responses to the battery question ( some get 12 hours, some get 4 hours ) that I am wondering if they updated the hardware at some point.
Click to expand...
Click to collapse
I believe its really the Samsung`s hardware and the weak radio they put into the phone. I had 3 different Samsung phones and i keep getting same problems. I think weak radio is to blame for high battery drainage because they use all the power just to connect to the tower. Lots of times i would take trips down to lake of Ozarks in Missouri. With htc and motorola phones (htc epic 4g and Motorola photon) i had a great signal with a minimal battery drainage. Even driving thru middle of nowhere i had signal but few weeks back i took a trip again and my galaxy nexus had no signal at all and it died in 5 hours probably of constant search of signal/tower. I just can`t wait for the new Motorola phones (no physical keyboard please) to come out for sprint. They just have awesome radios; hopefully they won`t change that.
Well good to know I'm not alone... I guess. I just feel like I used to get a lot better battery life.
I did get one of the dock chargers a few months back with an extra battery, and whatever battery isn't in my phone has always been stuck in the charger. Now that I think about that, that may be toasting these batteries.
I might try and take this in to Verizon and get something out of them. Maybe I can get something for all the money I have been paying for insurance for the last year.
Like EVOSerb said, maybe they'll give me an extended battery (I have one, but it was a $10 one from EBay that gets the same battery life as the stock).

[Q] Battery life poor since JB

Hi everyone,
My One X used to have brilliant battery life. I didn't turn on the screen that often throughout the day, but I was able to regularly check the news, send and receive texts, make a few calls and - crucially - keep my Wifi on for the entire day. With this setup, I was regularly getting 4 or 5 days of usage without having to charge my phone. However, as soon as JellyBean came along as an official update, I grabbed it... since then, I'm lucky if I get a day and a half out of it before I need to plug it into the wall.
I'm not running any custom ROMs: just whatever I get through official O2 OTA updates. Battery usage says that 36% of my drain is due to Android OS, with another 20% due to Maps. The rest are tiny, only 2 to 5%. Now I understand that a new version of Android might make some new demands on the hardware, but from what I heard, the update was supposed to improve battery life if anything. Even with the new Power Saver feature on, the difference is minimal, with only a few hours standby time gained overall.
Can anyone suggest anything to remedy this, or is this fairly normal? It's not world-ending and perhaps I was just really lucky to get 5 days of use in the first place, but thought I'd ask the experts before I grin and bear it. Thanks in advance for any help or advice.
19 hours and 40 minutes into this usage cycle, I've got 57% remaining. So it's shaping up to be about 40 hours of usage, down from 120 at its peak. Right now, it's also saying that Android OS has used 99% of my battery... and nothing else is on the list.
Does no-one have any idea what's going on?
Did you make an hard reset when you updated your phone?
This is why when you upgrade your phone to a newer Android version it is better if you perform a hard reset
AW: [Q] Battery life poor since JB
I suffer(ed) also under heavy drain due to maps since update to JB. But I'm convinced it's cause of Google Now. Disabled it yesterday and will check whether it gets better or not. Try disabling gnow and see if it gets better. I also had issues with gsam battery monitor in case you use this.
Sent from a Venom-powered Beast
This is my last charge 3 half screen time isn't bad.
play tekkit lite? come join my server for some fun. 193.35.58.2:25575
Sent from venom injected one x
Would you consider rooting because custom roms like blade have great battery life
Sent from my HTC One X using xda app-developers app
k-c-0 said:
I suffer(ed) also under heavy drain due to maps since update to JB. But I'm convinced it's cause of Google Now. Disabled it yesterday and will check whether it gets better or not. Try disabling gnow and see if it gets better. I also had issues with gsam battery monitor in case you use this.
Sent from a Venom-powered Beast
Click to expand...
Click to collapse
Thanks for this. Your suggestion got me checking for other people having issues with Google Now and battery life. I disabled it as you suggested and I'm definitely seeing an improvement. It's still not as good as it was, but I think I might be able to squeeze more than two days out of it now.
Do you have stock rom? Because I've just upgraded to JB yesterday and flashed a custom rom, and since then my battery is like 3 times more powerful.
You should definitely switch to a custom rom... Ever since I upgraded to JB I've seen a massive improvement in my battery life.. From barely making it through the day to almost 2days of my typical of usage.
Google Now does seem to kill battery as it polls the Google maps app a lot.. So I usually open task manager to make sure it isn't running in the morning background.
Sent from my Nexus 7 using xda app-developers app

[Q] strange battery issues with cm 10.1 stable?

so iv'e been using cm for over a year now -
i've moved around from 10.0 to various 10.1 nighties. but for the last 6 months i've been using the rc's - i went from 10.1 nightly all the way thru rc 1-5
up until the rc's started coming out i never used the built in downloader/installer - but i've used it since rc1 came out and had no issues
i just used it do dl/install the new stable 10.1 and i'm having some really strange battery issues -
let's say my phone is at 20%
i plug it in and it says charging
i go to bed
i wake up 6-7 hrs later and it still says 20% when i first turn it on
then i unlock, and start looking at things - all of the sudden it flashes up to 100%
then within a few minutes it flashes right back down to 20% - even the battery life record shows it under settings?? wtf
it's very strange
i realize the first suggestions will be to wipe clean, cache, dalvic etc and reinstall but i thought this was supposed to be a stable build??
anyone else seeing anything like this??
cpolly69 said:
so iv'e been using cm for over a year now -
i've moved around from 10.0 to various 10.1 nighties. but for the last 6 months i've been using the rc's - i went from 10.1 nightly all the way thru rc 1-5
up until the rc's started coming out i never used the built in downloader/installer - but i've used it since rc1 came out and had no issues
i just used it do dl/install the new stable 10.1 and i'm having some really strange battery issues -
let's say my phone is at 20%
i plug it in and it says charging
i go to bed
i wake up 6-7 hrs later and it still says 20% when i first turn it on
then i unlock, and start looking at things - all of the sudden it flashes up to 100%
then within a few minutes it flashes right back down to 20% - even the battery life record shows it under settings?? wtf
it's very strange
i realize the first suggestions will be to wipe clean, cache, dalvic etc and reinstall but i thought this was supposed to be a stable build??
anyone else seeing anything like this??
Click to expand...
Click to collapse
Stable build or not, a clean install is always recommended, even needed if you want your build to actually be ''stable''
P.S.: That's some intense jumping lol
Seems that your battery is defective. You may want to consider purchasing a replacement. Don't worry they're quite cheap. There are a bunch on eBay for around 10$ and have free shipping. Its worth a shot. If it doesn't fix your issue you'd still have an extra battery out of it.
Sent from my SGH-I747 using xda app-developers app
Have you wiped before jumping from cm 10 to 10.1? They're entirely different builds and need a proper wipe to function.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 4 Beta

Chronic battery issues with a variety of ROM's

Hi,
I've searched through various threads here and in the development/ROM forums but need some advice and didn't find advice for my specific scenario.
From Jan - Sept this year I was rooted but running the stock 4.1 Android (Rogers), I tried CM10 and a few other custom ROM's but eventually went back to stock carrier TW, with the only root change being the 4.2 Camera (for Photosphere) being installed (via CMW). During that time my device ran pretty ok in terms of battery life.
Then in Sept I started getting serious battery drain issues. I've got a few extra batteries and an external battery charger so I ended up swaping in and out charged batteries twice or three times a day.
So I decided to re-enter the root world and have since tried a variety of ROM's to see if the battery issues might be fixed. Installed TWN recovery rather than CWM, Tried ROM's such as Task650, CM10 Stable, CM10 Daily, and I still am encountering pretty dismal battery life?
I've tried various battery apps and generally keep screen brightness to a minumum, turn off mobile data, and have wifi/gps/bluetooth/sync off for most the day
I can't imagine it's the battery themselves, 1 is the original that came with my GS3 last year, 1 is official Samsung bought a few months ago and two are Anker ones that worked fine for months.
Can anyone recommend a specific ROM that may have worked for you? I haven't really messed around with custom kernals much, only played with kernals and governors a while back when trying out SETCPU (which I havent used in ages).
Any ideas?
Thank You.
Try the app BetterBatteryStats and see what is using up the battery. After a few hours of having the phone idle, look up the process running on the phone that uses the most wake locks.
Hi,
BBS did not really reveal one glaring thing draining the battery while the screen was off.
Any other ideas?

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