Develop Bugs

ics and battery life

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Battery life poor except for stock

I give up.every ROM I run just doesn't have the battery life expected. Am I expecting to much? Not even Cauks or blazer el29 doesn't give the battery life as stock.don't get me wrong they are all great roms but at least for my device not battery friendly. I'll post some battery stats from BBS if anybody has some free time to see what's going on. I'm on Cauks el29 now.I format everything before flashing and I use cauks format all many times. I'm on the verge of staying on stock roll my eyes.
Sent from my SPH-D710 using xda app-developers app

bigrndahouse said:
I give up.every ROM I run just doesn't have the battery life expected. Am I expecting to much? Not even Cauks or blazer el29 doesn't give the battery life as stock.don't get me wrong they are all great roms but at least for my device not battery friendly. I'll post some battery stats from BBS if anybody has some free time to see what's going on. I'm on Cauks el29 now.I format everything before flashing and I use cauks format all many times. I'm on the verge of staying on stock roll my eyes.
Sent from my SPH-D710 using xda app-developers app
Click to expand...
Click to collapse
Well when is the last time you used stock? And if it's been quite a while...consider having your battery checked out. Anyway, I'll continue as if your battery is fine from here on out. Basically, anything but stock tends to have a modified kernel. Even with all the battery tweaks, etc out there, there's a chance that the kernel itself might not play well with your phone. I'm not too versed in that, but I also noticed that the TouchWiz based ICS kernels/ROMs give MUCH better battery life than AOSP based kernels/ROMs such as CM9 and AOKP, etc. This is just basic stuff you might already know, but yeah, just go on and post your battery stats, preferably with a custom rom and a stock rom so we can see the difference and where it lies. Also, I'm running Touched by a Galaxy S3 on my phone and with moderate use (music for maybe a few hours a day, texting, don't really make many calls) I average between 8.5 and 11 hours from 100 to 0. Another thing I'd suggest is download CPU Spy from the Android market, or something similar if you prefer, and post screenshots from that on the custom ROM; the problem with AOSP and certain other GB and TW ICS roms that i've seen is that something prevents the processor from going into deep sleep mode, usually keeping it at 200mhz or higher. Lastly, when you use the custom roms, do you notice the phone getting really hot compared to the stock roms?

I'm assuming you know this but are you letting the battery cycle a few times before passing judgement? I usually spend a week on a rom before I decide if I have good/bad battery life... attached screenie is normal for me with moderate use on mijjhs goodness rom
Sent from my SPH-D710 using xda app-developers app

I always had faster battery drains on ROMs than stock. I see all this awesome battery stats screenshots but noticed they all share one common factor, only 1hrs to 30min screen use. Come on guys why I would want that battery life if to get it I have to barely use the phone makes no sense to me.
"hey look my awesome battery life, 1d 25min" (35min) screen time" pffffftttt :what:
Sorry for the rant. Had to let it go outside.
Edit:
Btw: this post had nothing to do with the screenshot before this post. Trust me didn't notice it was there till after the post. Lol
Sent from my epic trusty EL29 this time rooted.

Sorry to disagree but that is not my experience at all... This is the m'ics rom and is typical of the battery life I get.
Sent from my SPH-D710 using xda premium

CyberpodS2 said:
Sorry to disagree but that is not my experience at all... This is the m'ics rom and is typical of the battery life I get.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
Agree, everyone have different experiences, I haven't try that ROM yet, I will test it out later. Have a nice day/night sir.

Sadly I have to agree with OP.
And the previous screenshots at 59% with 1hr, 36 screen on is exactly the issue.
Hard to compare your battery stats with mine since screen on time for my phone will be 4+ hours.
Since there are no standardized testing anyone can do with any rom, any speculation on which rom has better battery life or doesn't is just pure bogus seat of the pants gut feelings.
If there were a standard test that ran like. 5 minutes of mail with 20 mails received, 10 minutes download, 30 mins of playing the exact same video, 13 music tracks of the exact same song all with screen, vibration, brightness, etc all at the exact same level, you could get a real test, but, alas, nobody has a standardized test.
For MY usage, stock clocks in at the same as or better than just about any other rom I've tried, including all the various super scripts out there.
I guess I just overuse my phone!

Omar04 said:
I always had faster battery drains on ROMs than stock. I see all this awesome battery stats screenshots but noticed they all share one common factor, only 1hrs to 30min screen use. Come on guys why I would want that battery life if to get it I have to barely use the phone makes no sense to me.
"hey look my awesome battery life, 1d 25min" (35min) screen time" pffffftttt :what:
Sorry for the rant. Had to let it go outside.
Edit:
Btw: this post had nothing to do with the screenshot before this post. Trust me didn't notice it was there till after the post. Lol
Sent from my epic trusty EL29 this time rooted.
Click to expand...
Click to collapse
Agreed absolutely.

bigrndahouse said:
I give up.every ROM I run just doesn't have the battery life expected. Am I expecting to much? Not even Cauks or blazer el29 doesn't give the battery life as stock.don't get me wrong they are all great roms but at least for my device not battery friendly. I'll post some battery stats from BBS if anybody has some free time to see what's going on. I'm on Cauks el29 now.I format everything before flashing and I use cauks format all many times. I'm on the verge of staying on stock roll my eyes.
Sent from my SPH-D710 using xda app-developers app
Click to expand...
Click to collapse
You're doing it wrong.
Sent from my SPH-D710 using Tapatalk 2

psych0r3bel said:
Well when is the last time you used stock? And if it's been quite a while...consider having your battery checked out. Anyway, I'll continue as if your battery is fine from here on out. Basically, anything but stock tends to have a modified kernel. Even with all the battery tweaks, etc out there, there's a chance that the kernel itself might not play well with your phone. I'm not too versed in that, but I also noticed that the TouchWiz based ICS kernels/ROMs give MUCH better battery life than AOSP based kernels/ROMs such as CM9 and AOKP, etc. This is just basic stuff you might already know, but yeah, just go on and post your battery stats, preferably with a custom rom and a stock rom so we can see the difference and where it lies. Also, I'm running Touched by a Galaxy S3 on my phone and with moderate use (music for maybe a few hours a day, texting, don't really make many calls) I average between 8.5 and 11 hours from 100 to 0. Another thing I'd suggest is download CPU Spy from the Android market, or something similar if you prefer, and post screenshots from that on the custom ROM; the problem with AOSP and certain other GB and TW ICS roms that i've seen is that something prevents the processor from going into deep sleep mode, usually keeping it at 200mhz or higher. Lastly, when you use the custom roms, do you notice the phone getting really hot compared to the stock roms?
Click to expand...
Click to collapse
Probably a good 2 weeks since on stock. I tried all ICS but i just used the kernel that it was packed with.THats a good time frame. What is the best kernel to run with roms?

cp320703 said:
I'm assuming you know this but are you letting the battery cycle a few times before passing judgement? I usually spend a week on a rom before I decide if I have good/bad battery life... attached screenie is normal for me with moderate use on mijjhs goodness rom
Sent from my SPH-D710 using xda app-developers app
Click to expand...
Click to collapse
Wow thats some crazy battery life. yea ive been on it for a good week. pretty much i stay on it for a week or two and then i do a battery calibrate. what kernel do you use with the Mijjhs Goodness rom

Get a good gb rom and under clock that puppy to 500 or 800. Battery definitely lasts
Sent from my SPH-D710 using Tapatalk 2

volwrath said:
Get a good gb rom and under clock that puppy to 500 or 800. Battery definitely lasts
Sent from my SPH-D710 using Tapatalk 2
Click to expand...
Click to collapse
Also if you use caulks roms flash his under volt script as well. I was using his -75mv script stable. Which equaled amazing battery life.
Sent from my SPH-D710 using xda app-developers app

CyberpodS2 said:
Sorry to disagree but that is not my experience at all... This is the m'ics rom and is typical of the battery life I get.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
How did you get this type of battery life? please share the steps on how you rooted your phone up to the operation.
thanks man.

revamper said:
You're doing it wrong.
Sent from my SPH-D710 using Tapatalk 2
Click to expand...
Click to collapse
Thanks for your observation that I'm doing it wrong. What would be appreciated more than telling me your opinion would give me steps in correcting as to "what" i'm doing wrong

bigrndahouse said:
How did you get this type of battery life? please share the steps on how you rooted your phone up to the operation.
thanks man.
Click to expand...
Click to collapse
By not using the phone.
Sent from the terminus system using quantum entanglement

gilbydakid said:
By not using the phone.
Sent from the terminus system using quantum entanglement
Click to expand...
Click to collapse
Lol
Sent from my SPH-D710 using xda premium

Things drain battery. This is my test off wifi for the most part using the phone as a phone with average use. Didn't even log in to Google on this one. Just proof that intensive applications, google services, and anything else added after a "factory flash" can manipulate battery life significantly.
Oh, and check out drain when I'm in less than ideal coverage. Noticeable difference. One huge factor to consider when diagnosing battery life.

It really depends on what you're doing with the phone. Obviously having brightness up playing heavy games with Wimax on will kill battery faster than someone on low brightness reading an ebook with wifi on. That said, i agree that I've had better battery life stock than almost all ics roms.
My life for Aiur

barnacles10 said:
Things drain battery. This is my test off wifi for the most part using the phone as a phone with average use. Didn't even log in to Google on this one. Just proof that intensive applications, google services, and anything else added after a "factory flash" can manipulate battery life significantly.
Oh, and check out drain when I'm in less than ideal coverage. Noticeable difference. One huge factor to consider when diagnosing battery life.
Click to expand...
Click to collapse
Truth to the last word.. I hate battery life threads too many variables.. I love the part about " using the phone as a phone " you crack me up B..:laugh:

Poor Battery Life

Hi All,
My Gnex 9250 has a poor battery life, My brother has the same phone and his battery last much longer(with 3g) than mine. Please help.
1130 AM - Battery 100%
1 and half hour Music(Player Pro) - Not much screen activity(with 2G enabled)
2G on for 6 hours, Pretty long texting.
about 45 Minutes of Browsing(2g)
10 Mins on Voice calls.
No Widgets.Background apps = Swiftkey,Go launcher(No theme),Profile scheduler.
By 12am battery was 20%
Screen brigntness is VERY low so its not that, Its about 20%.
Phone is about a month old.
Thanks in advance.
EDIT - 4.1.1(No available updates)

The fact your battery goes over 12hrs seems it's not too bad with moderate use. And who knows if your bro uses his as much as he says? If you want to compare then look at his battery stats in settings next to yours.
Try a different ROM? Kernel?
Sent from my Galaxy Nexus using Tapatalk 2

untruestory said:
The fact your battery goes over 12hrs seems it's not too bad with moderate use. And who knows if your bro uses his as much as he says? If you want to compare then look at his battery stats in settings next to yours.
Try a different ROM? Kernel?
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
Thanks for your reply.My brother does use as he said, Ive seen his battery stats, uptime was 1 day 9 hours(14% then). He doesnt text half as much as I do, but his voice calls are much more than mine. Also hes on 3g thats a bigger battery hog than 2g. Not too keen on changing the Kernel/Rom.
Could it be SwiftKey and Go launcher? He doesnt use either of them.
Thanks again.

sl4y3r88 said:
Hi All,
My Gnex 9250 has a poor battery life, My brother has the same phone and his battery last much longer(with 3g) than mine. Please help.
1130 AM - Battery 100%
1 and half hour Music(Player Pro) - Not much screen activity(with 2G enabled)
2G on for 6 hours, Pretty long texting.
about 45 Minutes of Browsing(2g)
10 Mins on Voice calls.
No Widgets.Background apps = Swiftkey,Go launcher(No theme),Profile scheduler.
By 12am battery was 20%
Screen brigntness is VERY low so its not that, Its about 20%.
Phone is about a month old.
Thanks in advance.
EDIT - 4.1.1(No available updates)
Click to expand...
Click to collapse
there are lots of thing that can affect your battery life one of it is the kernel ur using.
I already have this problem before.
i've tried lots of custom rom. the only custom rom that solve this battery issues is from Android Revolution HD 7.0.0
from this: http://forum.xda-developers.com/showthread.php?t=1361348

imo the best battery/performance kernel out there is franco's. try it, battery will be 2x to 3x longer.
if you like to fool around with what's chewing battery you can get better battery stats and it will tell you what keeps your phone from going to sleep. sometimes nothing, sometimes crappy app that messes things up
good luck!

Thanks to all for your replies.
Guess that 12 hours is not bad afterall right? Seems like that from the first reply I got.
Unfortunatly I have no time to re-flash a differnt ROM/Kernel. But thanks for all reccomendations.

sl4y3r88 said:
Thanks to all for your replies.
Guess that 12 hours is not bad afterall right? Seems like that from the first reply I got.
Unfortunatly I have no time to re-flash a differnt ROM/Kernel. But thanks for all reccomendations.
Click to expand...
Click to collapse
its a smartphone 12 hours is good imo

Buy the Samsung extended battery. It helps a lot.
http://www.ebay.com/itm/Genuine-Sam...462058?pt=PDA_Accessories&hash=item1c222d0cea
http://www.ebay.com/itm/150802739042?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649

sl4y3r88 said:
Thanks for your reply.My brother does use as he said, Ive seen his battery stats, uptime was 1 day 9 hours(14% then). He doesnt text half as much as I do, but his voice calls are much more than mine. Also hes on 3g thats a bigger battery hog than 2g. Not too keen on changing the Kernel/Rom.
Could it be SwiftKey and Go launcher? He doesnt use either of them.
Thanks again.
Click to expand...
Click to collapse
You say that your brother doesn't text as much as you but he uses voice calls more. Remember that when you're texting the screen is on and that has a big impact on battery life.

There's not a kernel, ROM, or flying saucer out there that can triple battery life Just saying. People get fanatical about certain ROM/kernel combos. The usual suspects are leaving on things you don't need and on occasion an app. People claim that different things work better on different phones but I think it's a bunch of crap. Much of what you hear is placebo.
I'm a fan of Trinity myself
Sent from my Galaxy Nexus using Tapatalk 2

whpsnp said:
You say that your brother doesn't text as much as you but he uses voice calls more. Remember that when you're texting the screen is on and that has a big impact on battery life.
Click to expand...
Click to collapse
untruestory said:
There's not a kernel, ROM, or flying saucer out there that can triple battery life Just saying. People get fanatical about certain ROM/kernel combos. The usual suspects are leaving on things you don't need and on occasion an app. People claim that different things work better on different phones but I think it's a bunch of crap. Much of what you hear is placebo.
I'm a fan of Trinity myself
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
Both valid points.
Sent from my i9250

Galaxy Note 2 Battery life

Hi Guys, If you don't mind please post up detailed information about your phone configuration that lead up to your awesome battery life.
Screenshots too please.
Thank you!
This is mine.......
Phone configuration:
Omega 9.1 ROM
Perseus 29.1 Kernel
Mobile data - GSM/WCDMA AUTO
Vibration Haptic Feedback turned off
Brightness Level Auto(lowest)
All Sync Turned off
GPS/Automatic Location off
Notification lights off
Usage: Moderate
Instagram
Facebook
Texting (A lot of WhatsApp)
Gmail
Flipboard
Watching Videos
Occasional Calls
And I know theres another post that has more views that shows people posting up their battery stats.
What i want is details, not just numbers. Would definitely help a lot of users out there with everyones input.
Once again, Thanks!!

Could help if u switch it to gsm only when u don't need to surf net and 3g only when u need the Internet. It drains battery when it keeps switching
Sent from my GT-N7100 using xda app-developers app

That is pretty nice, but i the first day i got the phone i had like 8,5hours on disolay dunno what was the whole time on battery, notification led on, brightness off (lowest) - this might be the main reason, gps off, always data or wifi on (i need to be connected with the world ) stock 4.1.1
Now i am using auto brightness and i get like 6-7 hours on display, sometimes 8, and everything is the same except that brightness is set to automatic, still i get full day everytime, sometimes even 1,5 day which i hate bcoz charginh in the middle of the day is nasty when you are busy with all the tasks that you get during day. All in all best battery life so far as in device, i just dont get it why somebody wouldnt want this phone with that battery life, if note III will have better life im pretty sure u will survive 2 days with heavy usage
EDIT: sometimes im working with my brother and he has galaxy nexus, we were both playing with the phones during the day and i had 56% left, he had 9% and i had more time on display, he had to charge it 3 times that day, i plugged it when i was going to sleep

I just sold
Y GNex. Hopefully will get Note 2 tomorrow
Battery life on Gnex sucks big time
Sent from my Vodafone Smart II using xda app-developers app

Here my battery stat...just fb and msg..
Sent from my GT-N7100 using Tapatalk 2

haki6007 said:
Here my battery stat...just fb and msg..
View attachment 1596999
Sent from my GT-N7100 using Tapatalk 2
Click to expand...
Click to collapse
Hi, can you please let us know what rom, kernel and your phone configuration?

My battery life fluctuate around 3 to 4 hours on screen. Saw some of the users have 9 hours. Dont have any idea how to get that actually

There's an entire duplicate of this thread just a few posts away.
-----
I would love to help you, but help yourself first: ask a better question
http://www.catb.org/~esr/faqs/smart-questions.html

EDIT: Just saw main thread. Posted there.

spycedtx said:
There's an entire duplicate of this thread just a few posts away.
I know. But its nothing in detail. It just shows numbers. The reason for my post is for users to contribute their detailed configuration for their phones such as ROMS, Kernels etc, that lead up to their battery life. Its all about the details.
Click to expand...
Click to collapse

Kojisan said:
spycedtx said:
There's an entire duplicate of this thread just a few posts away.
I know. But its nothing in detail. It just shows numbers. The reason for my post is for users to contribute their detailed configuration for their phones such as ROMS, Kernels etc, that lead up to their battery life. Its all about the details.
Click to expand...
Click to collapse
All of which is useless in the end. My usage habits and app installs will impact battery life differently than yours no matter how "exact" our settings are at an exact moment.
Can we please move beyond this silly notion of some holy grail of configuration? Use your phone! Ignore quadrant scores and whether I get 9hrs and you get 10.5 hrs. Those numbers will never be consistent, nor should they matter. If you're getting 2hrs of battery life, then maybe you have an issue worth solving.
If there were a singular combination that made everything run on platinum and 50000 hrs of screen time, trust me: we would know about it.
I plead to everyone: stop with the quest for "best". It isn't going to happen. Find what's best for you.
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I would love to help you, but help yourself first: ask a better question
http://www.catb.org/~esr/faqs/smart-questions.html
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spycedtx said:
Kojisan said:
All of which is useless in the end. My usage habits and app installs will impact battery life differently than yours no matter how "exact" our settings are at an exact moment.
Can we please move beyond this silly notion of some holy grail of configuration? Use your phone! Ignore quadrant scores and whether I get 9hrs and you get 10.5 hrs. Those numbers will never be consistent, nor should they matter. If you're getting 2hrs of battery life, then maybe you have an issue worth solving.
If there were a singular combination that made everything run on platinum and 50000 hrs of screen time, trust me: we would know about it.
I plead to everyone: stop with the quest for "best". It isn't going to happen. Find what's best for you.
-----
I would love to help you, but help yourself first: ask a better question
http://www.catb.org/~esr/faqs/smart-questions.html
Click to expand...
Click to collapse
Part of the quest for best is the journey and trials along the way. I think we are gonna carry on.
Sent from my GT-N7100
Click to expand...
Click to collapse

omega rom v9. 1 kalgas theme
press thx if i helped

note 2 vattery life scottrom clean rom 4.0.5
stesteste said:
omega rom v9. 1 kalgas theme
press thx if i helped
Click to expand...
Click to collapse
Running 4.1.2 clean ROM 4.0.5 with a 1.92ghz mod and custom modem I usually get about 15-30 hours depending on screen on time. I can safely stream google music all day to my Bluetooth about 6 hours and only drain 15-20% turning WiFi and GPS off helps a lot. Also set sync to off. Here is a screen shot after a 10 hour work day

R: Galaxy Note 2 Battery life
Running wanamlite 2.5 (stock deodexed ubdll3), auto brightness, perseus kernel with overclock and undervolt. 6 hours of screen time, 1 hour of calls, 2 days of usage.
Sent from my GT-N7100 using xda app-developers app

N7100
Stock 4.1.2 XDLL1
Nova Launcher
Sent from my GT-N7105 using xda premium

Beans 7 perseus kernel with oc/uv
7 hours or so screen time.
Sent from my SCH-I605

Sent from the Rabbit Hole

Hello here is my battery status 1d 8h 20% wifi and 80% wifi off and 26% battery left
Sent from my GT-N7100 using xda app-developers app

Hi guys!
I own Note2 till January but I never had good battery life! I dont know where is a problem. Can I have bad battery? My phone is rooted because on stock rom is my battery life worse.
Now Iam running Hurricane rom, bloatware I removed immediately, I used kernel mod for better battery performance but I cant get more than 3-4hours of screen time. I dont play any games, just browse the internet, mostly I am connected on wifi, sometimes Facebook or Messenger, nothing more. Please help me. Thanks

[Q] What ROM do you think is the best on battery life?

I have a ROMed Galaxy Note 2 and the battery life is amazing. My son on the other hand has a stock Galaxy S3 and it's the worst battery life I've ever witnessed. It's the typical draining while in standby issue reported by many S3 users. Bottom line, his phone is getting a ROM tonight before this phone melts down. Problem is, which one do I choose? There are so many and it would take me months to read thru every post to determine which one is right for him. So for now I'm going to focus on what really matters most, battery life.
Which ROM have you read about or used that you feel is battery life winner?
Thank you.

Hands down i747z
Sent from my SGH-I747M using xda app-developers app

I haven't been running ROMs for too long on my S3, but I'd have to say that AOKP by Task650 gave me the best battery life over some other ones I flashed.

Task560 ROM for sure.
Sent from my SGH-I747 using xda premium

Did somebody say my name?

We are lucky to have MANY great ROM's out there. There are so many great devs here that go out of their ways to make the experience better. I highly suggest trying as many as you can, because each phone, after much experience with my ROM's, are different. Make a nandroid backup and try a bunch! What I'm getting at is that there are too many well made ROM's here to pick one. Flash away. Oh and make sure you turn off google now cards and locations...that will drain your battery like no other on this phone. Best of luck!

task650 said:
Did somebody say my name?
Click to expand...
Click to collapse
Task560 is just a little bit less than you.

I must say I'm running task650's AOKP build (I have been since I got the phone :good and my battery life has been nothing but immaculate. Here's a few screenies showing you my averages. Now mind you me my device and my daily operations will differ from everyone else's but still gotta give credit where credit is due. Oh btw I'm running it with tasks underwear kernel. Sorry ktoons
Sent from my SGH-I747 using xda premium

I think most of the roms have pretty good battery life. I'm on Vanilla Rootbox and i'm getting good battery life.

Thanks for all the input guys. Most of those mentioned were at the top of my list. Instead, I chose a "stable" Rom not mentioned here in this thread and it was buggy from the jump. I quickly bailed and went with CM10 and life is good so far.
Sent from my GT-N7105 using xda premium

DaRTHSTALKER is the first rom I've ever ran that I noticed a significant improvement in battery life. Very noticeable. None of the others have ever caught my attention before.

From cm10.1 nightly 1/31
All I did was turn GPS and auto sync off
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

I'm on Slimbean 4.2.1 RC1 with lean kernel and I have to say it is buttery smooth and stable, fast as can be, and I'm almost two days into it with ~45% charge. Loving it

For longest time I was swearing at CM10 / CM10.1 and than I found a thread about what affect battery and now both TW and CM based roms that I use are about the same...
To get great battery life follow the simple rules:
- stay away from colour. The darker the theme / icons are the better the battery life. Some go as far as to get inverted gapps...
- no live wall paper. It will affect battery life... yes, the darker the wallpaper the better the battery life...
- turn off GPS , bluetooth , nfc and everything else that you don't need... turn it back on when you need it...
I have 15 toggle mod and I even turn off data when I don't need it. (I turn it back on once every couple of hours to get e-mail and notifications... than turn it back off... this also prevents rouge apps from dialling back home to mothership...)
- if I travel from one location to the other I toggle airplane mode on and off... this forces modem to look for strongest tower... the strogner the tower the less power you need... hence less battery consumption...
- Use Ti Backup on roted rom... unistall what you obviously don't use..
- Google apps that run that you don't know what they do... stop or unistall those that you don't need...
- Use fierwall... block everything that doesn't need to talk to internet ... less you use antenna longer the battery life...
Also, if going to new ROM wipe battery stats and let battery fully discharge couple of times. This helps as well...
Follow these simple rules and don't be surprised if your battery life doubles regardless of the rom...
Cheers

duke4c said:
For longest time I was swearing at CM10 / CM10.1 and than I found a thread about what affect battery and now both TW and CM based roms that I use are about the same...
To get great battery life follow the simple rules:
- stay away from colour. The darker the theme / icons are the better the battery life. Some go as far as to get inverted gapps...
- no live wall paper. It will affect battery life... yes, the darker the wallpaper the better the battery life...
- turn off GPS , bluetooth , nfc and everything else that you don't need... turn it back on when you need it...
I have 15 toggle mod and I even turn off data when I don't need it. (I turn it back on once every couple of hours to get e-mail and notifications... than turn it back off... this also prevents rouge apps from dialling back home to mothership...)
- if I travel from one location to the other I toggle airplane mode on and off... this forces modem to look for strongest tower... the strogner the tower the less power you need... hence less battery consumption...
- Use Ti Backup on roted rom... unistall what you obviously don't use..
- Google apps that run that you don't know what they do... stop or unistall those that you don't need...
- Use fierwall... block everything that doesn't need to talk to internet ... less you use antenna longer the battery life...
Also, if going to new ROM wipe battery stats and let battery fully discharge couple of times. This helps as well...
Follow these simple rules and don't be surprised if your battery life doubles regardless of the rom...
Cheers
Click to expand...
Click to collapse
While most of this makes sense, I have to disagree with discharging the battery fully. This actually reduces battery life drastically.

aybarrap1 said:
While most of this makes sense, I have to disagree with discharging the battery fully. This actually reduces battery life drastically.
Click to expand...
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I agree but idea is that you let the kernel optimize it by itself.
So you do this only a few times on new rom and that's it...
As for myself I tend to plug in the S3 to charge as soon as I hit 60-70%...
(whenever I can of course - i actually keep one charger at home and one at work)
SIDENOTE:
Forgot to mention the widgets... to me they're just short-cuts and if you set them for automatic update (weather being prime example) they'll just waist battery and bandwith... (it takes about 1 sec to turn on the data from 15 toggle mod and 1 more to start the app I want updated - email weather whatever... to me this is a small price to pay for extended bat life...)

If I may toot my own horn, how about this guy getting four days from one charge with my ROM and ktoonz's kernel? http://forum.xda-developers.com/showpost.php?p=36384974&postcount=95
Your mileage may vary but I usually get about a day and a half or two days from one charge with the stock kernel that's included in the ROM

agriff said:
If I may toot my own horn, how about this guy getting four days from one charge with my ROM and ktoonz's kernel? http://forum.xda-developers.com/showpost.php?p=36384974&postcount=95
Your mileage may vary but I usually get about a day and a half or two days from one charge with the stock kernel that's included in the ROM
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Click to collapse
Awesome stats
How in the world did he get the screen to only consume at 12%
Mine currently Displays at 54%

Blackjelly v1.01
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Auto update widgets kill my batt life also!
Sent from my SGH-I747 using xda app-developers app