Database Users

SGS Bad Battery Life? Share your experience

I think the consensus is that our Galaxy does not really have a "good" battery life. But how bad is it really?
Can you share your experience with regards to real life in terms of % drop during active use and non-use? (pls dont give built in battery stat/usage which I think is pretty useless for comparison)
Pls try to keep to following format so that readers can gauge their phone battery life:
===================
Phone: SGS I9000, DXJG4, voodoo lagfix 3.0, non-root, 3G+background data+Sync(gmail)+Location(wireless)=ON, BT/GPS/Wifi=OFF, auto-brightness, live wallpaper, Friends+weather+stock widgets update hourly.
Stand-by (overnight): 1.46% drop per hour (i.e. approx 12% drop over 8+hrs)
Active use: 23% drop per hour (3G web surfing with Opera Mini)
===================
Phone: Iphone 3GS, 4.02, non-JB, 3G+Push/sync(gmail)=ON, wifi/BT=OFF, auto-brightness.
Stand-by: 0.7% drop per hour
Active Use: 19% drop per hour (3G surfing with Opera Mini)
====================
Phone: HTC Touch HD (WM6.1), 3G+PULL gmail (15min)=ON, wifi/BT=OFF, auto-brightness, Sense UI (all widgets manual update)
Stand-by: 0.9% drop per hour
Active Use: 25% drop per hour (3G web surfing with Opera Mini)

The problem with this, is that batteries aren't equal, some people are using possibly counterfeit batteries, and some people batteries might not be calibrated.. Maybe it would be better to run the battery down to 0%?

if having issue with your battery and your rooted just run the command to remove /data/system/batterystats.bin then the reboot command with ADB it will improve your battery big time... this should be done when the battery is low like 10%..I did this and it took it from 10% to 38% and I got almost a 1/2 more out of my battery..
when ever you flash Roms you should clear the batterystats.bin.. when you reboot the android system will make a new file.
Code:
adb shell
su
rm /data/system/batterystats.bin
reboot

Just to set up the expectations here, its not always that clearing the battery stats work.. its just a history of the usage anyway.

depending on roms etc.. i had from 1% / hour issue battery drain to barely 0.3% per hour drain both in idle / stand by of course (it lasts forever on JPK in 2G on standby for example)
don't know what really causes the 1%/hour bug
in use i couldnt tell but i feel like it uses more than other phones unless you're watching black ^^

Apple has really good standby battery consumption on all their devices but SGS Probably has among the best battery life during active use.

I know it is quite the "norm" to have a 1-2% per hour drain on standby with 3G and sync on. I had the same drop using JF3 and the later JG4 firmware. There is no diff before and after lagfix.
I am not too bothered about standby drain but I am quite unhappy with the active use drain of 23% per hour.

mib1800 said:
I know it is quite the "norm" to have a 1-2% per hour drain on standby with 3G and sync on. I had the same drop using JF3 and the later JG4 firmware. There is no diff before and after lagfix.
I am not too bothered about standby drain but I am quite unhappy with the active use drain of 23% per hour.
Click to expand...
Click to collapse
If by active, you mean typically a form of internet or communication a lot of that blame goes on the application and consumer, we can't have high expectations for battery life from a 4.0" that is producing white backgrounds. A comparison to a 3.5" device that uses an LCD screen is just flat out unfair, there are other devices that you could compare to, say Droid X, which will also have better battery life, but that also doesn't really give more of a right to complain.
I'm surprised that there isn't better access to white on black internet reading, much like how the e-readers are set up. Is there nothing, does dolphin or mozilla have anything like this?

Right now I'm using 10% per hour using it as Mp3 player. Thats what juice plotter tells me. Using OCLF ontop of Voodoo lag fix under JM8 . I'm going to flash JPM tonight and just use OCLF as Voodoo isn't working with Froyo YET. But seriously the phone flies but battery life is unacceptable. When I use 3g to browse its like 20+% a hour minimal. I blame lag fixes as voodoo is known to kill batteries

battery drain
Wow! yesterday when I went to bed I had 72% full battery on my new galaxy s and this morning I found my telephone dead with 0% battery. the phone has standard XXJM1 firmware the only thing that I did is rooting. Yesterday I have installed Navigon, Igo, and Timeriffic on this phone, I also have setcpu running there. There were no issues before yesterday though, so I assume setcpu has nothing to fo with the problem. Any one has similar issue?

Well I don't have anything like your setup (jm8 + voodoo-oc + doc superslim here) but I believe I was experiencing a similar issue and it was not related to voodoo (checked the indicators listed on project-voodoo.org)... Maybe that is setcpu. You might want to try that because I have none of the other apps you listed.
Sent from my GT-I9000 using XDA App

I recently experienced similar issues and found out about some apps that prevented my phone from going into standby state or constantly smoking CPU time. Those were Tango and SwitchPro Widget, I'm not sure about Skype. Uninstalled all of them and now everything's fine again.
I suppose you have issues with apps gone crazy, too, as a battery drain to this extend is very unlikely to be caused by a lagfix or something like that. Suggest you uninstall recently installed apps one by one and see if the situation improves. If you have some 3$ spare, consider buying SystemPanel -> hxxp://goo.gl/aUxO which does a great job of monitoring your android system for CPU huggers.
Please share your experiences.

fraencko said:
I recently experienced similar issues and found out about some apps that prevented my phone from going into standby state or constantly smoking CPU time. Those were Tango and SwitchPro Widget, I'm not sure about Skype. Uninstalled all of them and now everything's fine again.
Click to expand...
Click to collapse
I dont have any of listed apps installed, so, in my case it's something different.
Darkstriker said:
Well I don't have anything like your setup (jm8 + voodoo-oc + doc superslim here) but I believe I was experiencing a similar issue and it was not related to voodoo (checked the indicators listed on project-voodoo.org)... Maybe that is setcpu.
Click to expand...
Click to collapse
I also have thoughts about SetCPU and I revealed another problem - I setup profile in SetCPU for screen off event to limit CPU to 200Mhz and turn on powersave mode - this caused my phone stuck in sleeping mode, only battery-out would solve the issue, I have corrected this profile to 400Mhz-200Mhz and conservative mode, so far no second issue. Will see after overnight.
Well, the battery on Galaxy S goes very fast, will look for other solutions to longer battery life. I want it to be at least 2 days.

ickyboo said:
Right now I'm using 10% per hour using it as Mp3 player. Thats what juice plotter tells me. Using OCLF ontop of Voodoo lag fix under JM8 . I'm going to flash JPM tonight and just use OCLF as Voodoo isn't working with Froyo YET. But seriously the phone flies but battery life is unacceptable. When I use 3g to browse its like 20+% a hour minimal. I blame lag fixes as voodoo is known to kill batteries
Click to expand...
Click to collapse
bs
i had voodoo with 1% battery drop in standby fresh install data wipe
i had voodoo with 0.2% battery drop in standby fresh reinstall data wipe
Didn't find out the difference
the truth is elsewhere
Let's see how it goes in froyo.

I had some high battery drain issues with the 'root' part of OCLF. I uninstalled it and installed voodoo and it seems to have gone away now. Battery life is definitely a little better than my Desire.
Btw, someone mentioned running only on 2G. How do you do that? I havent been able to find any option to disable the 3G radio (messing the apn settings doesnt turn off the radio...does it?)

my opinion
SGS is the best android phone because of battery.
compared to desire sgs holds 4 times more when surfing the web.
i allways foget to disable gps, wifi, i use full screen light. and it holds 40 hours always. im realy happy with that. had g1 before and the best was if it hold from morning to evening, but if much of use it lasted in 4 hours.
my frien has desire. he disconnects charger in the morning, and connects in the evening.

i need 2 battery a day, if i don't top it up when i by my PC/laptop/car

Threads merged...

roxazz said:
sgs holds 4 times more when surfing the web.
i allways foget to disable gps, wifi, i use full screen light. and it holds 40 hours always.
Click to expand...
Click to collapse
I'm really curious on how you manage to have 40hrs battery life. My SGS only have 18hrs tops, and that's with what I classify as conservative usage. Most of the time it only lasted 12-14hrs. So please do share some tips and tricks if you have some
( oh, I've set the screen to the lowest brightness setting, I don't use live wallpaper and use a dark colored wallpaper to conserve battery)
www.iqbalaribaskara.com | Sent from my GT-I9000 using XDA app.

I think the battery life is ok on sgs. I use it only on 2g and for me it last like 4days. If i activate 3g then it laat like 2 days.
Sent from my GT-I9000 using XDA App

Battery Tips?

I just want to know what I can do to improve my battery on CM7 nightly 32. I'm at 21 hours now and almost dead. Yet I see people get stuff like 2 days and 10 hours... I have tasker and the only profile I have is when the screen goes off it turns mobile data off (not sure If it works so I also use apndroid). I NEVER use wifi, bluetooth, or high brightness. I do however have gps on so in case I lose my phone is lost or stolen I can track it. So there's no way I'm disabling that. I have tried juice defender but figured since it can't effectively disable data for 2.3.3 I saw no point in the app. Any tips?
Sent from my HTC Vision using XDA Premium App

Sorry for the typos, I'm half asleep and there's no editing option in the xda app... atleast add it to the premium version!
Sent from my HTC Vision using XDA Premium App

21 hours on moderate use is great battery life. 12 hours is usually the measuring stick for smartphones, less is bad, greater is good.
Don't know who you saw getting two days plus, but they are either not touching their phone or have an extended battery.
Sent from my T-Mobile G2

Best way to extend battery life is to get an extended or high capacity battery. I just got the Mugen Power pack, not the chunky one, and im in the process of breaking it in.
On my stock battery i was getting about 17hrs of moderate use. Almost no talk but alot of texting, engadget and youtube mostly on wifi with gps always on. That might give you an idea, plus, there are countless battery related threads on here.
Will post back in afew days after my Mugen has cycled afew times.
Sent from my Virtuous Desire Z 1.0.1 using XDA App

I have 4 stock replacement batterys and never plug my phone in to the charger. When my phone is at about 5% i just take one out and pop the next one in and charge them in the wall... I know its not the answer you want but I never have a problem with battery life lol

I would agree that 21 hours is great battery life on this phone. I can get a week of battery life on my phone if I put it in airplane mode and stick it in my desk drawer =P
Not sure how big of an impact the tasker profile has. Unless your screen is off for long periods of time I would think that it might harm the battery life because every time you touch the device, it has to 'search' and connect to the tower again.
You can try running the phone at the stock CPU speed to see if that has an improvement on your battery life. I currently run the same 1017/245 as you with a screen off profile set at 245/245.
For me, as long as I can make it through a day's use, the battery life is fine. With moderate use I can go about 15-18 hours and heavy use I'm at around 12. The car charger in those cases is a life saver.
Bottom line is, battery life really depends on your usage habits. Those people getting days out of their phones likely aren't using them very much...

well i have setcpu set at 806 max and 245 min. screen off is at 245/245 and on powersave governor. other then that its on ondemand. i also have profile set to reduce the CPU based on battery. I have it set to <101% its at 806/245 , <41% its at 768/245 and less then 25 is 368/245. i realize that these are low speed but i hardly ever get lag and i use it for everything, music, video, youtube, internet, twitter, facebook, xda , and a here and there gmail. i guess if im getting exceptional battery life... anyone want some tips?

I find the more variation I put into profiles on setcpu, the worse my battery life gets. Theory - it is constantly watching and making changes based on your CPU needs and battery. So I have mine set to 1113-1113 performance, 245-245 powersave screen off, 245-245 powersave 45degrees+ and for your mobile data, try just having a widget to turn it on and off as you need it. You probably don't need it on everytime you turn on your screen do you?
Sent from my SilverBullet "HTCDesireZ running CM7"

The apndroid widget eventually gets out of sync with on/off with the data... I think its gingerbread. Most apps can't effectively turn the radio off. I hope they make one soon!
Sent from my HTC Vision using XDA Premium App

I find the stock battery to be not that great. I bought the Chichi batteries way back in October (when they were still considered cheap) and theyve been great. I havent really done any new tests since October, but back then (before I had a data plan) I was getting atleast a day and more (from 100% to dead) with moderate usage.
I'd look for a high capacity battery, though they seem to be expensive now.

Kevin001111 said:
The apndroid widget eventually gets out of sync with on/off with the data... I think its gingerbread. Most apps can't effectively turn the radio off. I hope they make one soon!
Sent from my HTC Vision using XDA Premium App
Click to expand...
Click to collapse
The power bar widget that comes with cm7 works perfect for me. Turns onoff Wi-Fi/apn/GPS/brightness/airplanemode
Sent from my SilverBullet "HTCDesireZ running CM7"

I just tested out my battery the other day. I got a day and 13 hours and I was at 19 percent. Wifi is a big battery killer, and brightness is too.
Sent from my HTC Vision using XDA App

Ill post a battery success story...sounds nerdy lol. And i live at my own home with my own family lol.
My mothers g2 is rooted and running cm7 nightly 29 or 30, I installed it last week. I asked her today for the first time how the battery was after a week. She is using an aftermarket 1800mah battery, wifi only at home, she was almost at 32 hours and had 39% battery left!!!!
Not sure of all settings but i put it on 1113mhz, on demand with min 368, autobacklight, wifi only at home, bluetooth is always connected and on. Talk is about 70% of her usage overall. 4 gmail accounts. I did not install set cpu at all. I even stopped it on my phone because it didnt help me one bit.
Not too shabby. I was at 57% with some texting but a lot of gps usage for latitude and wifi always on even when not at home.
sent from the rooty tooty fresh and fruity cm7 nighly powered G2

here is what i get out of a day (battery consumption for specific tasks are mentioned in percentages measured using juiceplotter)
wifi on constantly
display set to 24% brightness
background sync enabled (google, weather 6hrs, whatsapp and facebook once a day)
45 min video (rockplayer no h/w decoding) 15%
1 hr browsing+chat 15%
30 min calls 6%
20 min music+chat 5%
20 min general usage 5%
1 hr flash streaming 15%
24 hrs standby 24% (@ 1% for every hr of standby)
15% battery remaining after 24 hrs i.e. low battery warning.
i disabled the use wireless network option under locations and always on mobile data
and get much better battery life, also i use wifi constantly when available (which is 90% of the time), it is much better for battery life than using 3g or gprs/edge.
pretty amazing battery life IMO i am very happy.

So i have cycled my Mugen 1800mA battery acouple times. on average, i'm able to get about 27hrs of heavy use. Here are some settings as a baseline:
Always on Data
Wifi always on
Auto brightness
1GHz clock speed
massive amounts of text use
massive amounts of screen on time
will report back in afew days time after some more cycles.

Help, my battery life is horrible.

Help, my battery life is horrible, even for an X10.
I lose ten percent in 3 hours, mostly on idle. And cell standby is always on top. Any idea why this is so.
Sent from my rooted, JITed, X10, using my fingers, my eyes, one of my brain's four cores (Take that tegra 2), and Oh, the XDA app.

dante2086 said:
Help, my battery life is horrible, even for an X10.
I lose ten percent in 3 hours, mostly on idle. And cell standby is always on top. Any idea why this is so.
Sent from my rooted, JITed, X10, using my fingers, my eyes, one of my brain's four cores (Take that tegra 2), and Oh, the XDA app.
Click to expand...
Click to collapse
Same here..............................first 10% dies quick, seems to settle sa little after thay

ddi you check any background app that could be running for updates (timescape, weather...etc), these apps tend to cosume battery for updates even phone is in idle
if you are not sure which one it is try turning off the traffic and see if the battery still drains crazy, if it behaves normal I would say one or more of your apps running in background is the cause

no even i got same problem since i installed wolf's 3.5 and later my battery drains very fast !!! was using the wolf;s v3 before battery was very gud ... even all apps which m running now used to run before !!

Try wipe battery stats then fully charged it and calibrate it.
Use battery calibration, you can get it from market.
Sent from my X10i using XDA App

Okay, I'll try these. And Yes, my battery lasts a lot longer when I disable data. But could it have something to do with the baseband.
Sent from my rooted, JITed, X10, using my fingers, my eyes, one of my brain's four cores (Take that tegra 2), and Oh, the XDA app.

Did all the above stuff before now battery is going more fast...like lost 51% in just less than three hours ...ya I jus sent 10 msges 1 hour online radio and display at 75% brightness ...
What next then ????
Sent from my X10i using XDA App

It could take a few days for your battery to settle down after you have done a callibration.
Can you get cpu spy from the market and see if you phone is going into deep sleep, there could be some app that is using up your battery

the first 10% of the battery dies very fast and it's some kind of "trickle charge" to top off the battery. it settles down to a steady depletion after 89%.
3G eats all your battery, also check if your CPU maintains high clock speed all or not.

Yeah. As other have stated, download CPU Spy and leave you phone in standby (and not charging) for a while. Then check CPU Spy and make sure the phone is going into "Deep Sleep", as well as running at lower than 998 MHz. You may have to refresh within CPU Spy (via the menu button).
Also, if you're not connected to a wifi network, turn off WiFi. Otherwise the phone will search for a network regularly, wasting battery power.

my personal suggestions was, try to put brightness below around 50 or 60 percents.. its good enough even under bright places.. or you can try to raise the refresh frequency for those application you using such as beautiful widget / facebook update interval.. and try turn off those gps/wifi or any data traffic that running if you are not using it.. lastly also put the brightness to 0, if you are idle from using the phone or just to listen on songs, use earphone if possible.. thats what i do, its probably messy but its work quite well

Okay, THANKS. I'll try all these and report back.
Once again, Thanks y'all.

Ok it depends on alot of stuff
1.your baseband
2. Flash 2.1 wiped everything in xrecovery then flash any desired rom.
3.turn off backgroundd and auto sync
4.gps turn it off when not using it
5. Data turn it off also
6. Put brightness to 50%
Sent from my X10i using XDA Premium App

My cell standby is always high, usually around 30% of my battery use. I don't remember it being like that when I was running FreeX10 2.2 or even SE 2.1 for that matter.

acerulz said:
no even i got same problem since i installed wolf's 3.5 and later my battery drains very fast !!! was using the wolf;s v3 before battery was very gud ... even all apps which m running now used to run before !!
Click to expand...
Click to collapse
I actually had a dramatic improved battery life from v006 to V3.5. Then even longer battery life on V3.6. Before, my phone runs out of battery after one, two hours of gaming. Now I can play for four hours.
Eight hours of standby without wifi, data still took around eight percent. mine doesn't have the 400 hours sony claims to have either.
Sent from my X10i using XDA App

My battery life dropped after installing FPS UNCAP 54. Dramatically.
It's stock, rooted ROM.
It's counting downwards like a counter on a gas station!
From 100% to 1% in cca. 1 hour.

I find that GPS is the biggest drainer on battery so if you use that a lot that might be the problem. Also make it so your phone is only using 2G when you aren't actively using your phone (aka idling in your pocket) you might have slower synching but it isn't like you are using your phone during this time anyway.

dazbaz996 said:
It could take a few days for your battery to settle down after you have done a callibration.
Can you get cpu spy from the market and see if you phone is going into deep sleep, there could be some app that is using up your battery
Click to expand...
Click to collapse
if you are sure it is not rom related. get Green Power Free from the market. i suffered the same issue. now i can get up to 2 full days without charge...

rkonert said:
My cell standby is always high, usually around 30% of my battery use. I don't remember it being like that when I was running FreeX10 2.2 or even SE 2.1 for that matter.
Click to expand...
Click to collapse
Actually, that's good, it'd mean there is no-brainer task eating your juice in the background
Mostly there're three main thing to check out, some of these were mentioned. If you read it and feel it's a little bit too hard, jump to the end.
(1) Deep Sleep, check it through CPU Spy or SetCPU, if the phone idle, it should go to deep sleep
(2) App usage, since 2.3 arrive, it's much harder to check. Try "SystemPanel (Lite)"
In most case, it'd be these 2.
(3) Another one is to check the memory usage vs. minfree, the most essential one is "AutoKiller Memory Optimizer".... probably your custom ROM might have optimized these value already. But sometime the problem is that your normal usage has overloaded the minfree level, (too much background app, too much widget, too much sync) which cause the OS to shutdown some task while it'd be re-opened a few second afterward, this cause a stupid battery drainer loop.
Use AutoKiller Memory Optimizer, it'll show u 6 slots with amount of free memory, the trick is the free memory shouldn't be close to the forth slot.
HOWEVER, if this sound too complicated for you, I suggest first try to remove the widget one-by-one, uninstall some background apps to see if it gets better.
You could blame ROM, but the problem is not the ROM itself, the devs just try to optimize their ROMs for most users, some essential ROMs provide stability without many tweaks, meaning that you could just put 20 widgets without much troubles. An optimized ROM is a trade-off between multi-task and performance. That's why it's not work on some people.

Maybe you have an app keeping your phone awake, hence x10's gb runs at 998 mhz all the time, that could drain the s**t out of your battery, download setcpu from market, i lose 1% every 1 or 2 hours, im on stock 2.3 pre rooted by doomlord
Sent from my x10a"i"(running 2.3.3 root)

[Q] Battery Life with CM7 Barebones

Hello,
I have received my Kindle 4 days ago. Rooted, backup-ed in the next hour and I installed CM7 Barebones edition, a very nice ROM.
After 2 days of intensive use, I found that the battery life in use is very reasonable, but in sleep mode without wifi, no sync and only the core services of android, i notice a 2% battery loss by hour. In the "battery use" menu in parameters, the process "when phone is idle" take me about 10% of battery. I intend to test with or without airplane mode and the battery consumption is about the same.
So my question for the other users of this rom : are you experiencing the same levels of battery consumption in sleep mode ?
Thank you by advance ...

PinguinKilla said:
Hello,
I have received my Kindle 4 days ago. Rooted, backup-ed in the next hour and I installed CM7 Barebones edition, a very nice ROM.
After 2 days of intensive use, I found that the battery life in use is very reasonable, but in sleep mode without wifi, no sync and only the core services of android, i notice a 2% battery loss by hour. In the "battery use" menu in parameters, the process "when phone is idle" take me about 10% of battery. I intend to test with or without airplane mode and the battery consumption is about the same.
So my question for the other users of this rom : are you experiencing the same levels of battery consumption in sleep mode ?
Thank you by advance ...
Click to expand...
Click to collapse
Honestly haven't tired the Bare Bones ROM but I have the WhistleStop CM7 ROM and the Skimp Killah Super Kang CM7 ROM and both are great. I know Whistlestops version gets great battery life with almost no drain in sleep mode. I can sleep all night and only lose 1% with it. Just trying out the SKSK. I'll let you know.

I personally have not extensively tested the battery life of the rom I built (CM7 barebones). I do know the battery for me has no problem lasting a full day, which is fine for my need's. You could always flash over the stock kernel (which I will attach to this post) and compare the two. The current kernel in use is a intersectRaven build (20120110_1106 I think but am unsure). It is still being developed so battery life will likely just get better.
But anyway. Check the attachments on this post for the stock CM7 kernel built 02-01-2012. Also note, the stock kernel is not overclocked. It's default speed is 1008Mhz, where as Raven's is set to 1.2Ghz.

Ok ... indexa question for the whistletop rom, do you put the kf in airplane mode ? When i did not it seek for a signal and eat some power ....
Sent from my Kindle Fire (CM7).

Takenover83 said:
I personally have not extensively tested the battery life of the rom I built (CM7 barebones). I do know the battery for me has no problem lasting a full day, which is fine for my need's. You could always flash over the stock kernel (which I will attach to this post) and compare the two. The current kernel in use is a intersectRaven build (20120110_1106 I think but am unsure). It is still being developed so battery life will likely just get better.
But anyway. Check the attachments on this post for the stock CM7 kernel built 02-01-2012. Also note, the stock kernel is not overclocked. It's default speed is 1008Mhz, where as Raven's is set to 1.2Ghz.
Click to expand...
Click to collapse
I've notice a similar thing with the battery life. Prior to this ROM I was using whistletop's ROM with no battery loss while the device was sleeping. So as Takenover83 indicated, it's more likely to be an issue with intersectRavens kernal.
No problem, I can live with it for now. I love the responsiveness of this ROM, Thanks Takenover83.

I left my device alone for a little over ~10.5hours. Only thing I turned off was wifi. Note, I have a crap load of app's installed.
After 10 hours, I had 90% battery. So that's roughly 1 percent per hour, which I can live with. This was On Demand 300/1200.

Yeah I noticed a significant drain in battery loss. This morning my kindle was completely dead and when I got it charged I had some serious problems. It seemed wifi stopped working. I was able to connect but none of my google apps couldn't connect.

Very high screen-on battery drain?

I'm using AOKP (4.1.2) and I really love the rom itself, but I got the feeling that my battery is drained more when screen is on than usual.
With screen off I get good battery life - like 0.5 - 1% battery loss per hour with the standard samsung battery.
But when I surf over wifi for like 15 minutes the battery is drained like 10%. (I always use lowest brightness setting)
I know that the screen really eats through the battery, but this still seems rather high, doesn't it?

zroice said:
I'm using AOKP (4.1.2) and I really love the rom itself, but I got the feeling that my battery is drained more when screen is on than usual.
With screen off I get good battery life - like 0.5 - 1% battery loss per hour with the standard samsung battery.
But when I surf over wifi for like 15 minutes the battery is drained like 10%. (I always use lowest brightness setting)
I know that the screen really eats through the battery, but this still seems rather high, doesn't it?
Click to expand...
Click to collapse
Same here
I am on stock german xxlsz and i have same problem
Sent from my GT-N7000 using Tapatalk 2

http://forum.xda-developers.com/showthread.php?p=31352080
Also you should post in Q&A not general
Sent from my Samsung Galaxy SIV using Tapatalk 3

Welcome to Jelly Bean. :highfive:

That could be it - so far all jellybean roms I tested seemed to drain more power with screen on than ics or gb ever did.
And my problem is not related to no deep sleep or something keeping cpu alive - when screen is off everything feels normal.

I have reverted to rocket rom v12 cause that... JB is nice but this battery leak is not acceptable for me. Rr v12 is best solution definitelly.
Sent from my GT-N7000 using xda app-developers app

What I found out so far: auto-rotate on is a battery drainer - with it on system_server constantly stays at like 5-10% cpu usage, android.system.ui also uses more CPU % with auto-rotate on, CONSTANTLY.
I've read this is due to a too short polling interval for the location sensors, if someone knows how to change that please let me know, but I'm also trying myself.

Use BetterBatteryStats, my friend, to check if there's a wakelock with some app.

battery drain
i am watching this thread, because i also encountered battery drain on JB. thought battery is gone. hence bought a new one. slightly better but still drains a lot. i think the battery drain is because of smart stay. smart stay uses front camera to decide whether you are looking at screen. so when screen is on, front camera is also on and hence the double drain. at least for last four hours, battery drain is in check, after i turned off smart stay. hope this is right and help all of you.

I have the same issue.. Infact I believe this damaged my Battery.. it was working fine until I was on Stock ICS. After I flashed JB LSZ, I noticed heavy battery drain as well as wierd battery status indications..
Just today I noticed that the battery is slightly bulged..
it might just be the wrong time, or something with the ROM..
my phone is just 15 months old now.

Well to be honest my battery life is "ok" - I do get like 1-2 days depending on usage. As I already said, when the phone is in standby mode it drains very few power like it should. (I do have flight mode on almost all the time too, because I don't use it as a phone, just for data when I need it)
But I got this feeling that the battery drains alot faster than I was used to on screen on time since I'm on jellybean. The thing is, that I've checked almost anything, with BetterBatterystats, BatteryMonitor Widget and Powertutor.
The drainers when screen is on are #1 the Screen and #2 Android-System using the CPU. I've already deactivated auto-rotate and the media-scanner, this helped a bit. The only process that's really showing up in System Load is "android.system.ui" at like 2-5% CPU.
Is this jellybean-wide or could this be due to the additional AOKP tweaks?
How can I break it further down to find what really causes the load? (beside Screen taking more energy on JB which would make no sense from a physical viewpoint, the cpu-usage of android.system.ui can only be the other cause of the battery drain right?)