It has been almost a month since I've gotten the Galaxy S2.
I literally waited like a longing puppy for almost half a year to get this into my hands.
I have to admit, it is one of the most beautiful creations to ever grace our earth, but gosh, it has this one big, big flaw... (for me) battery life. Before you dismiss this as another battery life complaining thread, hear me out...
I have tried EVERYTHING.
Ever since 2.3.3, battery drain. Then 2.3.4 was announced... NO MORE BATTERY DRAIN. The news caused a burst of elation, but it was all too brief. Flashed to 2.3.4, same deal.
I've tried all the ROMs-- Litening, Villainrom, Cognition, Infusion (now defunct).
I've tried several kernels -- the standard CF kernel, neophyte's, mirage, etc.
I've calibrated my battery after each flash.
I've tried downclocking it with SetCPU.
I've frozen so much with TitaniumBackup.
Dormancy settings, system update settings, modem roms, I've tried them all.
I even purchased, in desperation, a third party battery which claimed to have 2000mAh capacity.
All to no avail. Nada, zilch, non. NOTHING has worked for me.
Last night for example, I had charged my phone to 100%. When I woke up 7 hours later, it had fallen to 63%.
Therefore can deduce that consumption is is about 5% per hour with screen OFF.
I have also made it a point to test a different ROM/kernel for at least 3 to 5 days before I make a change.
Now I really don't know where I'm going wrong, yeah I do have a few widgets and stuff, but what is a phone like this without widgets?
I am getting so sad over this issue. This phone is so perfect in every other way.
Why? Is it just me?
One no mention of actual battery life .
Two phones get fed up with multiple roms kernels etc rammed down their throat and dont work well .
jje
What exactly do you mean by 'battery drain' ?
Starting an new battery drain thread without even describing the type of battery drain is not a god start for this thread.
What is your idle drain? (% per hour when not using the phone).
How much "display on time" do you have when the battery is starting to be empty (no guessing, hard number from the battery menu please). A lot of people underestimates how much active use they have with SGS2.
Please also add graph for battery statistics, both the first page and also for the battery graph (press the small graph on top).
Just trying different ROM's in order to solve a battery drain issue is a bad idea, it is much better to find the root cause of the battery drain and solve that specific issue.
I mean I leave it overnight, and it falls from 100% to 60%.
It has never lasted me beyond 9 hours with mid level usage.
tjtj4444 said:
Starting an new battery drain thread without even describing the type of battery drain is not a god start for this thread.
What is your idle drain? (% per hour when not using the phone).
How much "display on time" do you have when the battery is starting to be empty (no guessing, hard number from the battery menu please). A lot of people underestimates how much active use they have with SGS2.
Please also add graph for battery statistics, both the first page and also for the battery graph (press the small graph on top).
Just trying different ROM's in order to solve a battery drain issue is a bad idea, it is much better to find the root cause of the battery drain and solve that specific issue.
Click to expand...
Click to collapse
Apologies, my post has been updated. I don't have a good graph with my now since I'm charging, but I will post one up tomorrow.
Do widgets really make a big difference? Because that's the only thing that I have not really tested.
Could very well be a misbehaving app or widget. My phone in idle uses 0.5%-1% an hour with wifi on. Without wifi it goes slightly faster strange enough. I have some widgets that update every hour, gmail push, whatsapp and Samsung account sync.
Test without syncing and widgets and then re-enable things one by one to find the problem.
Another battery thread. That really IS depressing.
i just got my phone few days ago, battery life isn't great so far but it isn't as bad as your case.
I would recommend you do proper tests after starting fresh. flash a stale official rom, keep the phone barebones, dont install apps etc.. then test bat life with phone call usage.
Then slowly start adding and enabling things like gps, auto sync, background data and so on, till you find the cause. I think the battery life thing in the settings can help too.
Jeremy said:
I mean I leave it overnight, and it falls from 100% to 60%.
It has never lasted me beyond 9 hours with mid level usage.
Click to expand...
Click to collapse
40% overnight is huge, I get approx 5% in 7-8 hours.
With 5% drain per hour with no usage, haven't you tested to turn off things until the drain stops? I would start with wifi, SGS2 doesn't work well with some routers. Then just continue with the usual suspects: widgets that connects to internet etc, email sync, facebook etc. (freeze with Titanium)
Do this systematically, you could turn off several things at once, but not too many, try to find the real cause.
There is of course a possibility that your phone is broken, but that isn't my first guess.
Why does no one try Juice defender???
tjtj4444 said:
40% overnight is huge, I get approx 5% in 7-8 hours.
With 5% drain per hour with no usage, haven't you tested to turn off things until the drain stops? I would start with wifi, SGS2 doesn't work well with some routers. Then just continue with the usual suspects: widgets that connects to internet etc, email sync, facebook etc. (freeze with Titanium)
Do this systematically, you could turn off several things at once, but not too many, try to find the real cause.
There is of course a possibility that your phone is broken, but that isn't my first guess.
Click to expand...
Click to collapse
Oh yes, that night the 40% drain was with Wifi on, and I heard that there have been issues with the DIR-655, which I am using.
Anyway, even with wifi off, my battery life fell from 100% to 83% with a very slimmed down ROM, everything that could be frozen, frozen.
Polluxus said:
Could very well be a misbehaving app or widget. My phone in idle uses 0.5%-1% an hour with wifi on. Without wifi it goes slightly faster strange enough. I have some widgets that update every hour, gmail push, whatsapp and Samsung account sync.
Test without syncing and widgets and then re-enable things one by one to find the problem.
Click to expand...
Click to collapse
Yeah. That's a good idea, thanks.
Will try that over the weekend
TheSobadef said:
Why does no one try Juice defender???
Click to expand...
Click to collapse
I would, but the thing is, the battery life should not even be that bad in the first place.
Sounds to me like you have a rogue app. I get 12,14 hours of heavy usage with brightness set to roughly 75%.
Don't flame him. He has tried alot things prior to posting. This is the place to post. Try the criskelo rom. It is a great rom with great battery life. Freeze wifi sharing. Delete apps at the beginning that you don't use all the time then add extra apps one by one and see what impacts the battery level the most. Check update schedules for things like news widgets and beautiful weather-I have mine set to six hours or so. There is absolutely no reason why you can't last a full day with 30-40% left.
Well, first of all, it's just a phone, although an expensive one, so no need to be stressed.
Secondly, it sounds very much like you have a faulty battery or device. Maybe you should have replaced it as soon as you noticed the problem. There's definitely something wrong there if it goes from 100% down to 60% overnight (assuming it's not heavily used during that time).
You already tried most of the things that I would do to tackle the issue. Try swapping batteries for a few days with somebody with the same handset, and see what happens.
Good luck!
For giggles, why don't you hard reset your phone? Then, instead of loading tons of apps of questionable quality, task killers, memory managers, and battery monitors, just load the stuff you need everyday. Things like e-mail and social stuff. People that haven't tortured their phones with excessive crap seem to get better battery life without even trying. With over a hundred apps, all the syncs syncing, heavy Wi-Fi use, and Exchange push I'm now up to 14-18 hours with moderate to heavy use. If the experiment works, start loading the rest of your stuff on your phone to see what the impact is.
Another thing to consider is your network connectivity. Your carriers signal strength and infrastructure could be part of the problem. Certain carriers and locations seem to contribute a lot to batter drain. Also, the SGS2 is very router sensitive. It likes Netgear, D-Link not so much.
Good luck.
This is with a screen on time of 2:14 too, and overclocking to 1.52gHz
There is no battery issue, this phone has twice the battery life of the desire hd and thats a fact, i have not changed fast dormancy or anything, this phone is king for battery life.
Played games and browsed internet, i would say medium heavy usage
Using 2.3.3 KF3
Also if you had a laptop that lasted 10 hours with 63 remaining wouldnt you think that was good? This phone is the absolute top dog, i would even say its better than IP4 for battery now
Also used cardiotrainer to track my run this morning using GPS, ran for 30 mins and lost around 6 percent... Amazing!
TheSobadef said:
Why does no one try Juice defender???
Click to expand...
Click to collapse
A lot do but informed opinion is that it drains battery .
jje
JJEgan said:
A lot do but informed opinion is that it drains battery .
jje
Click to expand...
Click to collapse
Yep Juice defender sucks, and is not needed really...
You either have a rouge app sucking the life out of your phone,
Your syncing at too short periods (mine is set to 1 hour)
Your phone signal is weak so your phone is using more battery drawing 3g from your service provider
I have seen better battery stats than mine. I don't know If something's wrong with my device (I have warranty tho so if it is, I can replace it)
I noticed that wifi is at the top of the list so I'm not sure what's going on.
I have greenify set for facebook because It destroys any battery. Also I disabled my location in case it was google now.
Accubattery shows 55% consumption while screen on (3h 29 SOT) while 38% of the battery gone while the screen is off (80% of that time is in deep sleep)
In the android's battery stats, wifi appears above screen in battery consumption.
Overall it's 16h 45 min of total battery life at 5% battery left.
I have seen 5h, 7h SOT so I don't exactly know what to expect.
I really need a hand because I can't let this pass if it's really a battery issue.
Thanks in advance.
Maybe you want to post a BBS log in this thread https://forum.xda-developers.com/android/general/guide-extreme-battery-life-t3095884 to get proper help.
MaceMzk said:
I have seen better battery stats than mine. I don't know If something's wrong with my device (I have warranty tho so if it is, I can replace it)
I noticed that wifi is at the top of the list so I'm not sure what's going on.
I have greenify set for facebook because It destroys any battery. Also I disabled my location in case it was google now.
Accubattery shows 55% consumption while screen on (3h 29 SOT) while 38% of the battery gone while the screen is off (80% of that time is in deep sleep)
In the android's battery stats, wifi appears above screen in battery consumption.
Overall it's 16h 45 min of total battery life at 5% battery left.
I have seen 5h, 7h SOT so I don't exactly know what to expect.
I really need a hand because I can't let this pass if it's really a battery issue.
Thanks in advance.
Click to expand...
Click to collapse
Nobody knows which device, bootloader status, dual sim, WiFi, apps, settings, rom etc. you are using. So please be so kind and provide these informations.
Also a full cycle of better battery stats is useful with all screens provided.
And as bullfinch110 said: there are threads(older) with battery tips
I'm sorry. I couldn't find a way to upload screens without external links and xda wouldn't let me.
Its xt1641, dual sim but i've only charged it with one.
Stock 6.0.1 Rom
Locked bootloader
Wifi is always on in that cycle. I've disabled today "enable wifi on deepsleep" to see what's up
I've also restored network settings.
Guys, please help me again!!!
My phone has horrible battery life. I know for a fact that it has up to 4000mAh as expected, I have keeping account of how much each apps used. However, it is drained out very fast. It has been this way even with the stock rom. Now I have flashed in Turbo rom the US version 21s (which I love very much, btw) and it is still draining like crazy.
I have even disabled location service and history and it is like that. I have even used other roms (lineageOS and paranoid), the battery still drains like crazy. I have only like a 15 hour-ish battery life on a phone that I used lightly so far.
I really want to keep this phone but if it keeps being like that, I might have to send it back or something which I desperately don't want to do...
Maybe you need to remove some bloatware on the stock LeEco ROM.
Otherwise I think you're getting decent enough battery life. Download Greenify or some other battery checking app to see if any app in particular is draining battery life. Look in the optimization page in Battery and try to unoptimize or optimize some apps. Doze might be causing issues.
Damn it.
I'm having the same problem, I can not fix what I've done, doing a clean setup completely erasing everything did not solve the problems.
There is no such problem in custom roms.
What can be done in this regard.
Power ManagerService and PowerManagerDisplay have no way to stop exploiting the battery. : Ağlayan: