Develop Bugs

Yet, another battery life thread?

Hello,
I know all of you have heard this time and time again. I'm sure I'm going to create a huge battle discussion, which I don't want honestly. But I've searched throughout the forums with no luck, and if I've missed this, please direct me and delete the post. So, with that said, hear me out..
I understand apples iPhone's battery tends to last long because of the not so true multitasking, and there are hundreds of ways to make androids battery life significant.
I was just wondering if there was any ROM, kernel, etc to get rid of the "android true multitasking" to increase battery life. Myself as an android user, never tend to use widgets or really have any use for multitasking anyways. I play on facebook, text, and make calls periodically. Anyone want to chime in without blowing my head off on this one?

ICS and JB both have an option under settings/developer options called Background process limit.

creeve4 said:
ICS and JB both have an option under settings/developer options called Background process limit.
Click to expand...
Click to collapse
Did not know that. Thank you.
Does this increase battery life, that you know of?

rhodes588 said:
Did not know that. Thank you.
Does this increase battery life, that you know of?
Click to expand...
Click to collapse
It increases a lot, but I personally don't recommend that
Sent from my Galaxy Nexus using xda app-developers app

kyokeun1234 said:
It increases a lot, but I personally don't recommend that
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
Really? Doesn't seem like it would or even that it would increase battery usage since apps have to be restarted every time.
It will definitely free up ram, but that's not really an issue with the GNex.

I should probably also state that I'm on Vicious CM10 w/ stock kernel, and have not yet seen more then 10 hours and 2 hours on screen time.

For my opinion I think depend on lifestyle you use phone

kongkard said:
For my opinion I think depend on lifestyle you use phone
Click to expand...
Click to collapse
True, but I only use my phone for browsing facebook, xda, and text messaging. I never play games, use youtube, netflix, or any other battery drainer. I also keep 4g off. I would think I could get more then 10 hours and 2 hour screen time with the 2100 mah extended battery (already exchanged for a new, so it's not the battery)

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

Best battery on AOSP ROM?

I want to try an AOSP ROM but I need the battery to be as good as touch wiz with no under clocking. Any help would be appreciated.

realtalker said:
I want to try an AOSP ROM but I need the battery to be as good as touch wiz with no under clocking. Any help would be appreciated.
Click to expand...
Click to collapse
Then I would have to say to stay with Touch Wiz...I like AOKP and run them more than anything else but battery isn't as good as Touch Wiz. Although it does last enough for my use.
Sent from my SGH-T989 using xda premium

realtalker said:
I want to try an AOSP ROM but I need the battery to be as good as touch wiz with no under clocking. Any help would be appreciated.
Click to expand...
Click to collapse
Try slimstar, best results I got on aosp
Sent from my Zapped SGH-T989 using Supercharged Slim Bean

ArcticFish said:
Try slimstar, best results I got on aosp
Sent from my Zapped SGH-T989 using Supercharged Slim Bean
Click to expand...
Click to collapse
Could you possibly post some screenshots or something of the battery life?

Slimbean
I have flashed just about every ROM on here and SlimBean is the very best FOR ME nothing else was close. I realize some will say something else worked for them, which means you really are just going to test them out.
But for my money I use onlychevys version of slimbean and it amazing.

I have one that was a little better I believe I got about 35 hours but I can't find SS right now

battery depends on your usage. I could probably pull 4 days out of aokp but I wouldnt be using the phone very much...

msg1285 said:
I have one that was a little better I believe I got about 35 hours but I can't find SS right now
Click to expand...
Click to collapse
You have barely any screen time! Also...you have something keeping your phone awake....big time! Should check that out! You're battery will last even longer if you get your phone deep sleeping!
I usually get 30 hours or so with around 4 hours screen time ....and really...it doesn't vary much no matter what rom I'm on.
That's with my use anyway. Games will drain your battery quick...also no matter what rom you're on.
I'd say use whatever rom appeals to you...I think drastic battery difference among roms is an urban legend.
Sent from my cell phone telephone....

kj2112 said:
You have barely any screen time! Also...you have something keeping your phone awake....big time! Should check that out! You're battery will last even longer if you get your phone deep sleeping!
I usually get 30 hours or so with around 4 hours screen time ....and really...it doesn't vary much no matter what rom I'm on.
That's with my use anyway. Games will drain your battery quick...also no matter what rom you're on.
I'd say use whatever rom appeals to you...I think drastic battery difference among roms is an urban legend.
Sent from my cell phone telephone....
Click to expand...
Click to collapse
I found out that I have a charger that my phone wont go into deep sleep after use , its crazy. I spent 3 days testing roms and kernels to figure out it is in did the charger.
I only half agree about it being urban legend, some Roms are much better than others battery management. just my opinion

msg1285 said:
I found out that I have a charger that my phone wont go into deep sleep after use , its crazy. I spent 3 days testing roms and kernels to figure out it is in did the charger.
I only half agree about it being urban legend, some Roms are much better than others battery management. just my opinion
Click to expand...
Click to collapse
I heard about the charger issue. I've gotten in the habit for awhile now of always rebooting after a charge. Haven't had sleep issues on any rom with rebooting after a charge.
I do agree that some roms and kernel are better on the battery....but it seems like a minor increase...not enough to influence my choice in roms anyway. I choose a rom that has what I need it to have, has good support, an active thread with dev active in thread....plus dev track history plays some role....I do tend to stick with certain devs.
For me anyway....my 30 hour average....3 1/2 to 4 1/2 screen time has been consistent on any jb rom I've tried. But hey....others may have different experiences.
Sent from my cell phone telephone....

msg1285 said:
I have one that was a little better I believe I got about 35 hours but I can't find SS right now
Click to expand...
Click to collapse
You never use your phone, do you? Most of the time, there was no phone signal. You must be in Airplane mode.
Sent from my SAMSUNG-SGH-T989 using xda app-developers app

My benchmark for best battery is how well the phone sleeps, the lastest AOKP nightly has my phone sleeping better than any other rom I have run. I am also running eugene's dual core sleeper app though I have not tested the build without the sleeper app. screen on battery use is going to be a pig, only an hour or so of difference between roms/kernels...

Alarmmy said:
You never use your phone, do you? Most of the time, there was no phone signal. You must be in Airplane mode.
Sent from my SAMSUNG-SGH-T989 using xda app-developers app
Click to expand...
Click to collapse
A lot of people read the signal wrong.
Red is horrible.
yellow is bad.
The grey is regular signal.
Green is very good signal.

8Fishes said:
A lot of people read the signal wrong.
Red is horrible.
yellow is bad.
The grey is regular signal.
Green is very good signal.
Click to expand...
Click to collapse
You seem right. But why it is also grey when im on airplane mode?
Sent from my SAMSUNG-SGH-T989 using xda app-developers app

Alarmmy said:
You never use your phone, do you? Most of the time, there was no phone signal. You must be in Airplane mode.
Sent from my SAMSUNG-SGH-T989 using xda app-developers app
Click to expand...
Click to collapse
I actually use it quite bit, obviously a 35 hr charge isn't day I watch netfix, but i listen to iheart radio everyday (truck stereo died )

kj2112 said:
I heard about the charger issue. I've gotten in the habit for awhile now of always rebooting after a charge. Haven't had sleep issues on any rom with rebooting after a charge.
I do agree that some roms and kernel are better on the battery....but it seems like a minor increase...not enough to influence my choice in roms anyway. I choose a rom that has what I need it to have, has good support, an active thread with dev active in thread....plus dev track history plays some role....I do tend to stick with certain devs.
For me anyway....my 30 hour average....3 1/2 to 4 1/2 screen time has been consistent on any jb rom I've tried. But hey....others may have different experiences.
Sent from my cell phone telephone....
Click to expand...
Click to collapse
Thanks for all the suggestions. I'm currently on Vincom's SuperLite CM10 Rom and I'm getting amazing battery life... well at least better than any Touchwiz and AOSP I've tried before. I'm gonna stay on this for a few more days and then switch to Slim Star and compare the batteries.

realtalker said:
I want to try an AOSP ROM but I need the battery to be as good as touch wiz with no under clocking. Any help would be appreciated.
Click to expand...
Click to collapse
My recommendation is onlychevys unofficial slim bean 3.1.0. Great battery life for me.

ArcticFish said:
Try slimstar, best results I got on aosp
Sent from my Zapped SGH-T989 using Supercharged Slim Bean
Click to expand...
Click to collapse
How much screen time do u get ?

Stock ROM has better battery life than AOSP and other ROMs

I've been migrating from many ROMs and I noticed that stock Sony ROM has a significantly better battery. Even though stock Sony has a lot of bloatware it performs better but AOSP ROMs are a lot smoother. I heavily use my phone with the screen on more than three hours and WiFi on.Has anyone other than me noticed that? Or is it just me.

lewis021 said:
I've been migrating from many ROMs and I noticed that stock Sony ROM has a significantly better battery. Even though stock Sony has a lot of bloatware it performs better but AOSP ROMs are a lot smoother. I heavily use my phone with the screen on more than three hours and WiFi on.Has anyone other than me noticed that? Or is it just me.
Click to expand...
Click to collapse
yup me too, all jb 4.2.2 ROMS including CM builds and AOSP seem to drain a lot faster even on idle conditions. But i found paranoid android 2.57 jb 4.1.2 far better as far as battery is concerned and maybe better than stock and at the same time fluid and smooth.

lewis021 said:
I've been migrating from many ROMs and I noticed that stock Sony ROM has a significantly better battery. Even though stock Sony has a lot of bloatware it performs better but AOSP ROMs are a lot smoother. I heavily use my phone with the screen on more than three hours and WiFi on.Has anyone other than me noticed that? Or is it just me.
Click to expand...
Click to collapse
I have xperia ion LT28at (at&t unlocked). I made the phone rooted and deleted some bloatwares with Link2SD software. There are many bloatwares like At&t related ones. Today I am trying the phone with full battery .
see the pic.

This is the minimal use of my phone after deleting bloatwares in stock rom. It is around 13,5 hours. Brightness was %15~20.
Here is the picture.
So,
How can I extend the battery life?
Sent from my LT28at using Tapatalk 2

zedonetx said:
This is the minimal use of my phone after deleting bloatwares in stock rom. It is around 13,5 hours. Brightness was %15~20.
Here is the picture.
So,
How can I extend the battery life?
Sent from my LT28at using Tapatalk 2
Click to expand...
Click to collapse
What was the screen display time during this battery period?

auni said:
What was the screen display time during this battery period?
Click to expand...
Click to collapse
it wasnt much. i mostly kept the phone screen off to determine the battery life of this new phone. I bought this phone 2 weeks ago. and still same low battery life.

zedonetx said:
it wasnt much. i mostly kept the phone screen off to determine the battery life of this new phone. I bought this phone 2 weeks ago. and still same low battery life.
Click to expand...
Click to collapse
If you press "screen" in that battery stats menu you've just shown us, you can see the time that screen was on. That was what we'd like to see to determine if you battery life is abnormal compared to others. What you're showing doesn't tell us a lot. 13 hours is not much, but everyone has a different idea of what "not using the phone much" is.
What would your guess be for screen time, 2 hours, 3 hours?
Anyway, 13 hours is not much, your phone should be able to do much better if you didn't play any games. It really depends in Android what apps you have installed, because some bad apps drain battery in the background.

zedonetx said:
it wasnt much. i mostly kept the phone screen off to determine the battery life of this new phone. I bought this phone 2 weeks ago. and still same low battery life.
Click to expand...
Click to collapse
Give couple of more weeks to the phone. Charge more. Usually all the Xperia gives better result after few full charge cycles. And battery life varies actually.
Read the Battery life Thread available in General Section. You should find several tweaks and tips from the other users.

I have the same problem, on stock rom i had something like 0,5% battery drain per hour, on AOSP/ Jelly Bean roms i have 2~4% per hour...

I had 50% of battery at the end of the day. I just used my phone for SMS and calls, no wifi no mobile data 30% screen brightness and on 2G .
Sent from my LT26w using xda premium

lewis021 said:
I had 50% of battery at the end of the day. I just used my phone for SMS and calls, no wifi no mobile data 30% screen brightness and on 2G .
Sent from my LT26w using xda premium
Click to expand...
Click to collapse
Exactly...if i use 3g....my battery drains alot...2g saves battery
Sent from my LT28i using xda app-developers app

Battery Life

Am I the only person who notices that all these battery save kernels aren't working for them. I flashed CM and I have been getting amazing battery life (13+ hours) with moderate usage, but with leankernel for example, I only get 9 hours max and my phone heats up a lot.

Phantomhive said:
Am I the only person who notices that all these battery save kernels aren't working for them. I flashed CM and I have been getting amazing battery life (13+ hours) with moderate usage, but with leankernel for example, I only get 9 hours max and my phone heats up a lot.
Click to expand...
Click to collapse
Not working for "them"? Or for you? Of course they do not work for everyone. They also may work well for one ROM but poorly on another.

Well I was curious how kernels worked for others. Sorry.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Depends on the device. "All hardware is created unequal" -rani9990
Sent from my SGH-I747 using Tapatalk 2

That greenify app works pretty well for me...
Now that is post 10... can I post in developers now?!?

G4L4><y said:
That greenify app works pretty well for me...
Now that is post 10... can I post in developers now?!?
Click to expand...
Click to collapse
What does the greenify app do exactly

Phantomhive said:
What does the greenify app do exactly
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?p=38192418
Sent from my GT-P7510 using Tapatalk 2

jasvncnt1 said:
http://forum.xda-developers.com/showthread.php?p=38192418
Sent from my GT-P7510 using Tapatalk 2
Click to expand...
Click to collapse
No two phones work the same. I've had my S3 for about 2 weeks and have run Stock-rooted, and e few custom roms. I have 4 email accounts-pushed, 10 screen widgets, and always texting, web surfing, etc. I'm currently at 14 hours with 49% remaining. When I work in spreadsheets, and use a a reader, (usually 2 hours each) I still get 14-16 hours, no matter what rom/kernel I've been running

Jep56 said:
No two phones work the same. I've had my S3 for about 2 weeks and have run Stock-rooted, and e few custom roms. I have 4 email accounts-pushed, 10 screen widgets, and always texting, web surfing, etc. I'm currently at 14 hours with 49% remaining. When I work in spreadsheets, and use a a reader, (usually 2 hours each) I still get 14-16 hours, no matter what rom/kernel I've been running
Click to expand...
Click to collapse
I guess mine is just a piece of crap :/

Phantomhive said:
I guess mine is just a piece of crap :/
Click to expand...
Click to collapse
You just need to find the ROM and kernel combo that works well with your phone. I have tried ROMs/kernel combos that some get excellent battery life from but mine is horrible and vice versa. Keep testing as it is a trial and error type thing. Also your kernel settings can make huge differences. What works for one may not work well with your phone. Different settings on the same kernel may net you excellent results.
Sent from my SAMSUNG-SGH-I747

I have noticed battery life tends to vary wildly depending on ROMs and even people. I guess I don't use my phone all day long, but on a TouchWIZ 4.1 ROM, the app "Battery Left" (from Play Store, its free) reports that I can get up to 46 hours on a full charge, based on my typical usage patterns (and if I use Greenify). On the other hand, I have used an AOSP 4.2.2 ROM in the past (such as LiquidSmooth), and Battery Left will tell me, after a few days, that I will get about 25 hours on a full charge (again, with Greenify). I have to do more testing, but there is definitely some difference between ROMs and battery life...

Phantomhive said:
I guess mine is just a piece of crap :/
Click to expand...
Click to collapse
Guess mine is too...

I read this thread & thought battery life has as much to do with what's running in terms of synching, background data, services, connectivity etc.
http://shopping.yahoo.com/news/making-your-smartphone-battery-last-longer-214520188.html

I am using one of the unofficial CM11 ports that is supported nightly and have been getting terrible battery life. I hate to ask the question which is the "best", but what would be a good kernel to flash?
I do not do much heavy gaming either. In fact, I do not do any gaming. Just casual browsing.

codemonkey98 said:
I am using one of the unofficial CM11 ports that is supported nightly and have been getting terrible battery life. I hate to ask the question which is the "best", but what would be a good kernel to flash?
I do not do much heavy gaming either. In fact, I do not do any gaming. Just casual browsing.
Click to expand...
Click to collapse
Well before I suggest any kind of "good kernel to flash" I want to make note of something. If you're running a nightly of an unsupported version of CM11 then don't expect great battery life. This has little to do with what you're doing on the phone but the purpose of nightly's is to have users report bugs. Many of these bugs are the kind that can drain battery rather quickly. So the first thing I'd do is find a stable AOSP rom to run on before thinking about kernels.
That being said, a kernel universally accepted as "good" is KT747 by Koonsez

n_alvarez2007 said:
Well before I suggest any kind of "good kernel to flash" I want to make note of something. If you're running a nightly of an unsupported version of CM11 then don't expect great battery life. This has little to do with what you're doing on the phone but the purpose of nightly's is to have users report bugs. Many of these bugs are the kind that can drain battery rather quickly. So the first thing I'd do is find a stable AOSP rom to run on before thinking about kernels.
That being said, a kernel universally accepted as "good" is KT747 by Koonsez
Click to expand...
Click to collapse
Thanks for the reply bud. I personally like supporting the nightly versions of ROMs but I wasn't thinking the reporting that I do is causing that much of a battery drain.
I may consider today to go to a stable AOSP ROM that isn't nightly.
Sent from my Nexus 7 using Tapatalk 4

I have been flashing ROMs now for the past 4 years. I have never really got into the nitty gritty of anything specific but probably best I do. One question I had in regards to all these ROMs is, do they not come with their own Kernel which I would have assumed is the best recommended for the given ROM. When i see battery life of 14+hrs with room to go, I must be doing something wrong.
Thank you for any info in advance.

poor battery life
i have CM 10.2 4.3.1 in my SIII and all i can get is 6 hours of battery life. how i can fix this?¿ also my phone gets hot vey quick sometimes without use it.
Greetings from Venezuela
codemonkey98 said:
I am using one of the unofficial CM11 ports that is supported nightly and have been getting terrible battery life. I hate to ask the question which is the "best", but what would be a good kernel to flash?
I do not do much heavy gaming either. In fact, I do not do any gaming. Just casual browsing.
Click to expand...
Click to collapse