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I am having huge issues with my battery on my galaxy s2. It drains really fast, 60% over the last 15 hours this night when the phone has been idle. This has been an issue for about a week now; I cannot seem to find a solution? I have tried various roms, wiping and doing a clean install, but the problem continues. Currently using lightening rom 3,2.
Do anyone know what can be causing this battery drain? Is the battery defective??
What apps do you have installed?
Sent from my GT-I9100 using XDA App
That is quite a drain I can see there. The drain might be caused by having too many widgets or having too many applications open. If you plan to put it on standby, do close those apps that are not important to you.
Have you tried rebooting?
I have a stock lightening rom 3,2. no apps installed, except titanium backup pro and opera mobile. I have frozen all kinds of stuff in titanium to try find the cultprit, but without success. As you see, no apps except andoid OS is running. Same drain on villainrom, lightening. Don't know what can be causing the error. Is there some way to check if the phone or the battery it self is to blame?
Try with screen on - normally I think that should run for 6 hours or so. Using that as a reference, you can check to see if the energy stored in the battery is normal. It doesn't look like your OS is staying overly active to me.
Hi bjorninge,
Every time after you flash a new ROM you should calibrate your battery.
Get the app "battery calibration" from the market and follow instructions and please report back whether you can achieve better performance.
Cheers,
bamthwok
bjorninge said:
I am having huge issues with my battery on my galaxy s2. It drains really fast, 60% over the last 15 hours this night when the phone has been idle. This has been an issue for about a week now; I cannot seem to find a solution? I have tried various roms, wiping and doing a clean install, but the problem continues. Currently using lightening rom 3,2.
Do anyone know what can be causing this battery drain? Is the battery defective??
Click to expand...
Click to collapse
I have a similar issue, as was the same with my captivate. I have stock ROM on my GS2 though, the way I got it out of the box pretty much. Android OS takes up most of the battery usage. I don't know what it is. Widgets updating constantly? The constant syncing from Gmail/push email?
Well that's surprising! Awake and Screen On bar is quite low and totally synchronized, yet 60% drain, now I gotta say it's weird.
bamthwok said:
Hi bjorninge,
Every time after you flash a new ROM you should calibrate your battery.
Get the app "battery calibration" from the market and follow instructions and please report back whether you can achieve better performance.
Cheers,
bamthwok
Click to expand...
Click to collapse
Tried calibrating the battery, but it doesn't seem to help too much
yugotprblms said:
I have a similar issue, as was the same with my captivate. I have stock ROM on my GS2 though, the way I got it out of the box pretty much. Android OS takes up most of the battery usage. I don't know what it is. Widgets updating constantly? The constant syncing from Gmail/push email?
Click to expand...
Click to collapse
Unfortunately, I have the same issue as you've described above. I am running on stock KE2 kernel and the battery drain is quite a lot. The 'Android OS' is always consuming a lot of processor time on standby mode.
This needs to be fixed A.S.A.P.!
Download and install the app BetterBatteryStats from Android section, it is a very useful app which will show what Awaking the device from deep sleep and processes too. For me, it was the damn Latitude stuff going on background and wasn't letting the device to go to deep sleep.
Regards.
Sent from GT-I9100
Thanks for the tip. I have downloaded the app now. what spesifically should I look for?
You just look under 'Wakelocks' and you will know what apps are causing the Awake, then you could take further steps.
Regards.
Would be great if you could look at the screenshot and tell me if something is wrong. Also, after the battery calibration, I've "only" lost 26% the last 7 hours mostly idling. I don't see anything abnormal in the screenshot I provided :/
Well nothing is wrong imo as everything is very low. You should check those which are using more than 10 mins Wakelock, some seconds doesn't matter actually. And you can post any query further to the original thread of this app, here,
http://forum.xda-developers.com/showthread.php?t=1179809
Regards.
OK, So I'm now back to 12% battery usage (from 100% to 88%) with 17 hours and 30 mins on battery, which IMO is normal.
What did I do? Well, I removed the battery and put the rest of the phone into the stove for an hour on 50-60 degreed celsius. My 98% android OS usage is gone and the battery works as normal .I also had problems with the phone constantly going into "car mode" which is now gone.
I got some tips around the internet that my issues were all related to moisture on the inside of the phone.
I was just wondering on how long your battery life was, I guess when comparing to idle time. I ask because this was the main issue of mine as to why I havent flashed anything. When idle I was getting up to about 3 - 4 days of battery.
If battery life is important to you I would avoid all ROMs other than stock.
Flashing 3rd party ROMs is likely to damage you battery calibrator which causes you battery life to drain rapidly since calibration gets all screwed up.
Nobody knows specifically what is causing this serious issue but what we do know is that it happens when you flash a 3rd party ROM/Kernel.
ArtificialSweetener said:
If battery life is important to you I would avoid all ROMs other than stock.
Flashing 3rd party ROMs is likely to damage you battery calibrator which causes you battery life to drain rapidly since calibration gets all screwed up.
Nobody knows specifically what is causing this serious issue but what we do know is that it happens when you flash a 3rd party ROM/Kernel.
Click to expand...
Click to collapse
hey! can you please keep all your posts in one thread? it's getting hard for me to track your progress.
thx man.
jonnyg1097 said:
I was just wondering on how long your battery life was, I guess when comparing to idle time. I ask because this was the main issue of mine as to why I havent flashed anything. When idle I was getting up to about 3 - 4 days of battery.
Click to expand...
Click to collapse
custom roms usually use the stock kernel. what you get on your stock rom, you should get on a custom.
battery life is also subjective and variable, depending on your useage patterns, etc.
ArtificialSweetener said:
If battery life is important to you I would avoid all ROMs other than stock.
Flashing 3rd party ROMs is likely to damage you battery calibrator which causes you battery life to drain rapidly since calibration gets all screwed up.
Nobody knows specifically what is causing this serious issue but what we do know is that it happens when you flash a 3rd party ROM/Kernel.
Click to expand...
Click to collapse
Once again... lick my butthole 5thelement. Man you really bring out the class in me tonight bro.
I've been using task650s ROM with great battery life. I did have the battery drain issue which I don't think is really ROM related but once I went through the suggested calibration on this forum everything has been great. Think I've had my Tab on for 5-6 days with it at idle through the night and earlier parts of the day and using it for internet browsing and music around the house each evening. Turned it off last night with 30-40% battery left (just a guess).
ArtificialSweetener said:
If battery life is important to you I would avoid all ROMs other than stock.
Flashing 3rd party ROMs is likely to damage you battery calibrator which causes you battery life to drain rapidly since calibration gets all screwed up.
Nobody knows specifically what is causing this serious issue but what we do know is that it happens when you flash a 3rd party ROM/Kernel.
Click to expand...
Click to collapse
Yea I am familiar with screwed up battery life calibration on my Captivate. I was getting anywhere from 8 hours to a day and a half which was why I was asking.
sternweezy said:
I've been using task650s ROM with great battery life. I did have the battery drain issue which I don't think is really ROM related but once I went through the suggested calibration on this forum everything has been great. Think I've had my Tab on for 5-6 days with it at idle through the night and earlier parts of the day and using it for internet browsing and music around the house each evening. Turned it off last night with 30-40% battery left (just a guess).
Click to expand...
Click to collapse
Really? Hmm thats good to know, I will look into that one then if I consider flashing.
Heavy usage (a lot of browsing, notes, some games) nets me a little over a day. My usage can be heavy and nonstop.
My average is around 2 days before I have to charge. That's mostly moderate heavy. My usage is abnormal but I can say I'm happy with its battery life.
Using tasks rom and pershoots kernel.
My usage is heavy everyday so I get about 7 - 8 hours of screen time by the time I go to bed and usually I am around 30% - 35% left. I use it all day for when I am on the train or in class. Running Starburst KME at the moment but I got the same average battery life on all ROMs using stock kernel. Pershoots kernel is reliable and I could go an extra day if I wanted.
My galaxy tab got big problem on battery.Fully charged on 6am morning,airplane mode without any use,by 7pm night i left 50% battery.Baseband version P7500KWXG1 firmware upgrade from samsung kies.
yh9205 said:
My galaxy tab got big problem on battery.Fully charged on 6am morning,airplane mode without any use,by 7pm night i left 50% battery.Baseband version P7500KWXG1 firmware upgrade from samsung kies.
Click to expand...
Click to collapse
yeah, battery life for the galaxy tabs seems to be pretty poor! i just can use my 10.1v (stock) for only about 3 or 4 days. just for a little bit of wifi surfing and ebook reading (wifi switches off during standby).
i really love my galaxy tab, and i hated my ipad, but regarding battery life i used to charge my ipad only once a month!!! really. and i used it exactly for the same things as my galaxy tab.
samsung promised it to have similar battery life as the ipad...one more lie from them...
Hello all,
I bought the Atrix around 6 months ago and I have always had the same problem I'm about to describe. First I should mention that I used to have a stock rom and stock radio (77.15) until a couple of weeks ago when I flashed Cyanogenmod and radio 77.30p, yet the problem is present in both configurations.
My problem is as follows: my battery life is mediocre. Without using the phone very heavly, I get around 7-8 hours until it shuts off. Since day one I've tried many different fixes to see if the battery improved without success. Now here's the fishy part: for whatever reason, every time I make a full wipe (when I was using stock I did it from the "reset to factory defaults" option, now I do a full wipe on recovery) the battery lasts an insanely amount of time, something like 24 hours or more.
Here's how it usually works for me: I do the wipe, I boot my phone and configure my accounts, the phone syncs and installs the apps I usually use. Like I said, that day the battery will last forever, last time I've tried this I reached around 31 hours before I plugged the phone back on, and it was around 17% still. Now, the next day, without installing any new app or using the phone for nothing different, I go right back to the mediocre battery life. For example, it just went from full charge to 88% for just 10 minutes of browsing the net on wifi, not even using 3G.
Like I said, this happened with stock ROM and now with Cyanogenmod regardless of the radio I'm using. I have calibrated the battery a million times, I've tried with Watchdog which didn't show nothing, the same with Better Battery Stats. I really need some suggestions on what to try because it irritates me that the battery is dropping so much with such a light use.
Thanks!
I'm getting also quite short battery life with CM7. I'm wondering what the reason could be. It gets down with 15% for just 5 hours without any phone calls. I have just whatsapp and email checking every hour. No other resource hungry applications. With the stock ROM and the same usage I'm getting around three days ~ 72 hours.
Well in my case it's the same but with both stock and others roms. I suspect it's a software problem because I get normal battery life when I do a full wipe.
Did you try to revert back to unlocked bootloader.
What I found strange is that somehow the indicator doesn't show the ratio mAhercentage. On 85% battery the calibration battery shows charge 4030 mAh which is not 15% less than the full charge of 4200 mAh.
Well actually this problem has existed from before I unlocked the bootloader so I don't think that's the problem. And in my case the mah percentage is correct. It's like if somethings draining the battery that I can't find. Maybe is a problem with my carrier?
If the coverage is poor where you live then it is possible to get lower battery life than expected. Another solution is to revisit the application you use, try also to do a full wipe including formatting the internal memory card.
Go through this process: http://forum.xda-developers.com/showthread.php?t=1198333
You'll be good to go after that. Check also BetterBatteryStats here in xda, will show you what processes eat the battery.
Thanks but I've tried that when using the stock rom and it didn't help me. I think that solution is for a different problem as it's mainly to display the correct mah percentage, which is not exactly my problem. Also, CM7 already includes juggernaut fix.
Radiobuzz said:
Thanks but I've tried that when using the stock rom and it didn't help me. I think that solution is for a different problem as it's mainly to display the correct mah percentage, which is not exactly my problem. Also, CM7 already includes juggernaut fix.
Click to expand...
Click to collapse
Have you tried a different radio?
Yeah, like I said I had 77.15 at first and now I'm using 77.30
There's more radio's, check in General.
Ok, I flashed 77.36p and there was an improvement, I've unplugged the phone around 13 hours ago and I'm at 25%. Would you consider a good battery life for a light use? It's getting better but I saw many people crossing the 24 hour mark on their phones. Are there any other radio to try other than 77.15, .30 and .36 that would be worth it?
Do a full wipe in Fastboot & install Nottach's DarkSide and leave it with the stock kernel. I'm at 77% with 1hr 40 minutes screen time & 17,5 hrs standby..
P. S. I'm using the N_01.100.00R radio. Am in Germany, though on an at&t phone. Best radio so far.
Anywhere from 13-20 hours is fine but keep in mind it's all dependent on what's on your phone. If u have a bunch of apps pulling data from the internet or something ....I mean its all dependent on your phone setup.
Sent from my MB860 using xda premium
Vangelis13 said:
Do a full wipe in Fastboot & install Nottach's DarkSide and leave it with the stock kernel. I'm at 77% with 1hr 40 minutes screen time & 17,5 hrs standby..
P. S. I'm using the N_01.100.00R radio. Am in Germany, though on an at&t phone. Best radio so far.
Click to expand...
Click to collapse
Well, for now I'll stick with Cyanogenmod for a while because I really like it, but I have flashed the radio you've mentioned, we'll see how it behaves. Thanks!
Hi there,
just in advance: Yes, I have read quite a bunch of battery drain threads, but non of them seemed to help me.
Compared to GB, my SGS2 doesn't even seem to last more than a day in terms of battery life.
Now I wonder - is it just me playing around with (otherwise awesome) CM9 and battery life is actually normal or is there some kind of battery drain going on?
Running CM9 14-04, stock kernel, LPS baseband.
Attached please find BBS stats and other battery stats screenshots.
Help very much appreciated
lunatic54 said:
Hi there,
just in advance: Yes, I have read quite a bunch of battery drain threads, but non of them seemed to help me.
Compared to GB, my SGS2 doesn't even seem to last more than a day in terms of battery life.
Now I wonder - is it just me playing around with (otherwise awesome) CM9 and battery life is actually normal or is there some kind of battery drain going on?
Running CM9 14-04, stock kernel, LPS baseband.
Attached please find BBS stats and other battery stats screenshots.
Help very much appreciated
Click to expand...
Click to collapse
Awake over 2 hours, 1 hr 43 min screen on, down to 62%. That's on track for 5.5 hours awake time, and about 4.5 hours screen on time. Looks pretty normal.
You MIGHT be able to squeeze a bit more juice out by playing with your sync and display settings, but that otherwise doesn't look that bad.
ctomgee said:
You MIGHT be able to squeeze a bit more juice out by playing with your sync and display settings, but that otherwise doesn't look that bad.
Click to expand...
Click to collapse
Sync is pretty much off completely and display brightness was on 'auto'...
the graph looks pretty good without gsf and alarm manager wakelocks
Have you tried to re-calibrate your phone? I once messed around with my battery and i lost 70% battery overnight when it was on 100% because i was unplpugging, plugging my phone in randomly.
How do I do that?
Just bought a 2000mA battery and it seems I still got the same 'issue'...
Sent from my GT-I9100 using XDA
lunatic54 said:
How do I do that?
Just bought a 2000mA battery and it seems I still got the same 'issue'...
Sent from my GT-I9100 using XDA
Click to expand...
Click to collapse
Download battery calibration app from play store, put phone on charge, wait untill will be 100% charged, open battery calibration app, click calibrate, unplug you phone. Done.
lunatic54 said:
How do I do that?
Just bought a 2000mA battery and it seems I still got the same 'issue'...
Sent from my GT-I9100 using XDA
Click to expand...
Click to collapse
Did you try to wipe your battery stats? Also, I noticed that playing around flashing the Roms, requires 2-3 full charging cycles before the battery was "stable" again
I've also read the following but didn't try it (I imagine it does the same than wiping the battery stats in the recovery, but you never know, you can try it):
Delete batterystats.bin in data/system, after full charging (with Rootexplorer or another app)
Then, use it until to 90%, and full charging.
Good luck!
When is it a good idea to wipe battery stats? When it's empty or at full charge?
Sent from my GT-I9100 using XDA
The CM9 has some battery drain problems because is still developing maybe try wiyth another rom and see if the problem remains
lunatic54 said:
When is it a good idea to wipe battery stats? When it's empty or at full charge?
Sent from my GT-I9100 using XDA
Click to expand...
Click to collapse
when its full charge. Try to play with other ROM+kernel, i did this and solved the battery drain issue....
Good Luck
M90 said:
The CM9 has some battery drain problems because is still developing maybe try with another rom and see if the problem remains
Click to expand...
Click to collapse
Stats seem fine to me. Your phone shouldn't drain much when idle, but once that big screen is lit up the power drains much faster. The SGS2 stock battery is not huge to begin with either. Your 2000mah will be better though, especially after using it for a few cycles. You can also try flashing a different stock kernel or custom kernel (Siyah, etc).
Sent from my GT-I9100 using Tapatalk 2
Thanks guys!
So charged my 2000mA battery up to 100% now and wiped the battery stats. Hope this helps.
I really wanted to stick to CM9, because I don't wanna do a factory reset every couple of days when flashing other ROMs, because I'm tired of setting up all my stuff over and over again...
Are the other ROMs really that much better? Thought that CM9 would be best, because most popular...
Or could it be the baseband/modem too?
I am on LPS right now... I've searched the forums forever, but can't seem to find an answer for:
What is the best baseband/modem for battery life?
lunatic54 said:
Or could it be the baseband/modem too?
I am on LPS right now... I've searched the forums forever, but can't seem to find an answer for:
What is the best baseband/modem for battery life?
Click to expand...
Click to collapse
ANSWER = non use whats best for your location network and phone .
jje
So I'm using Vodafone in Germany... anyone else?
I've been using the latest gingerbread builds and I'm having great battery life, But I notice when I use AOKP or any kind of ICS rom my battery life isnt so great..
Is there a specific kernel you people are using? and What kernel settings are working the best for you?
Thanks!
xamadeix said:
I've been using the latest gingerbread builds and I'm having great battery life, But I notice when I use AOKP or any kind of ICS rom my battery life isnt so great..
Is there a specific kernel you people are using? and What kernel settings are working the best for you?
Thanks!
Click to expand...
Click to collapse
This turned into a vs thread which is no bueno
Sent from my SGH-I777 using Tapatalk 2
xamadeix said:
I've been using the latest gingerbread builds and I'm having great battery life, But I notice when I use AOKP or any kind of ICS rom my battery life isnt so great..
Is there a specific kernel you people are using? and What kernel settings are working the best for you?
Thanks!
Click to expand...
Click to collapse
Good news that you are not alone. Based on my premature calculation, only 10 out of 100 (that's 10% ) ICS ROM users have good - great battery life, meaning the rest is having worse. Mine is falling into that group. I never have great battery, only so-so and below average.
Also as Nick has mentioned, asking for which best is a NO NO here.
One might be good for me, doesn't mean it will be good for you and vice versa.
Try them all and pick one that best suite for you.
My 2 cents......I know you have read this several times - but battery life is really dependent on a lot of factors - your AT&T signal, rogue apps, data sync frequency, CPU governor etc. etc.
read Entropy's excelled thread on battery drain on this forum.
i tried out a few GB roms over the last few weeks and really did not notice any battery improvement over ICS.
Currently running cMIUI with xxkernel and it is really working out great as in the battery easily lasts for the whole day.
I remember when I was on stock GB I could go upto 2 days on single charge - but that may be due to the battery being brand new. I have read that the battery in SGS2 really degrades fast
I have 2% drain per hour when doing absolutely nothing, screen off, wifi off, gps off during 8 hours overnite.
While someone has reported having only 2% or 3% drain over 8 hours overnite.
votinh said:
I have 2% drain per hour when doing absolutely nothing, screen off, wifi off, gps off during 8 hours overnite.
While someone has reported having only 2% or 3% drain over 8 hours overnite.
Click to expand...
Click to collapse
Have you tried using "Better Batter Stats" to see what is causing the drain?
I have been using AOKP since Task brought it to us and I average 1% every two hours over nite.
Do you use the Facebook app? That sucker is hungry for your juice.
dschreiber69 said:
Have you tried using "Better Batter Stats" to see what is causing the drain?
I have been using AOKP since Task brought it to us and I average 1% every two hours over nite.
Do you use the Facebook app? That sucker is hungry for your juice.
Click to expand...
Click to collapse
I got BBS v1.7 for a while, that was absolutely no help.
I installed BBS 1.8 for about a week. Based on their info, I got the "multipdp" along with some other things (such wake-lock) cranked up big time.
I read the Entropy thread, not much help.
Note: Wifi is off.
Maybe 3G/H+ keep toggling for sync process?
I do use facebook! haha. and I havent used better battery stats
dschreiber69 said:
Have you tried using "Better Batter Stats" to see what is causing the drain?
I have been using AOKP since Task brought it to us and I average 1% every two hours over nite.
Do you use the Facebook app? That sucker is hungry for your juice.
Click to expand...
Click to collapse
I'd also recommend using CPU Spy in conjunction with Better Battery Stats to see if the phone is able to enter deep sleep.
I don't get as good as you. . .I average about 1% or less per hour overnight. But that's with wifi on, periodic syncing of 7 accounts, scheduled backups and cache cleaning going on.
votinh said:
I got BBS v1.7 for a while, that was absolutely no help.
I installed BBS 1.8 for about a week. Based on their info, I got the "multipdp" along with some other things (such wake-lock) cranked up big time.
I read the Entropy thread, not much help.
Note: Wifi is off.
Maybe 3G/H+ keep toggling for sync process?
Click to expand...
Click to collapse
My understanding is multipdp will show when apps are waking the radio to use cell data - each wake instance results in a minimum of 6 seconds of wakelock. Switching to wifi when you are idle "should" eliminate this wakelock.
I could be wrong here...dig into the known battery drainers thread from around the time the first ICS roms were being tried on the i777. There was some discussion of it...it is a renamed version of some other wakelock in GB.
Sent from my SGH-I777 using Tapatalk 2
That's what I said, "maybe 3G/H+ toggling".
I believed that if I left wifi on overnite, do nothing, I still had 2% drain per hour.
Let me completely turn off data tonite and see how thing goes.
errrrr I have a huge problem with my battery. I've been testing various ICS roms and kernels(aokp, foxhound, serendipidity, fluxxi Kernel, siyah 3.4.3.,Neak) and all of them with the exception of serendipity w/siyah kernel, drain my battery real fast.
Not really sure what the problem is but when I look at what's been using the battery its most of the time either screen (which is understandable) and android os? I went to bed last night leaving my phone at 100% and woke up to find it at 52%. When I looked at what was using the battery it displayed, 93% android os and only 3% cell standby??(btw Foxhound ICS, Siyah Kernel) Maybe I have to many things updating/syncing?
When I first got my phone, 2-3% battery drain overnight was one of the things that amazed me about stock gingerbread on the i777.
I've flashed alot of roms since then, and so far, no ROM can even touch that stat.