Develop Bugs

[Q] Cyanogenmod 10 battery life on normal usage.

Hi guys,
I recently switched to CM 10 (Android 4.1.2) and the battery life is significantly lower than what I had on the stock ROM and the new Sense UI... I guess.
My phone won't run longer than 10-15 hours a day with normal usage, which means Wi-fi and 3G always on, screen on automatic brightness being used for about 1 hour in total (for one charge). However Android OS, Cell Standby and Phone Idle still account for the most battery usage, which I find weird. I have no wakelocks and my device goes to deep sleep when not used.
Is this normal behavior with the new Cyanogenmod and Jellybean or are my expectations too high? I already read most threads concerning battery life, but most of them discuss problems such as wakelocks or similar issues. My question relates to the normal behavior of CM 10.
I am grateful for all replies on the matter or personal experiences.

It's known that CM10 battery life is worse than stock JB. You can try different kernels and different governors, but it's a trade-off between life and performance.

BenPope said:
It's known that CM10 battery life is worse than stock JB. You can try different kernels and different governors, but it's a trade-off between life and performance.
Click to expand...
Click to collapse
I don't understand, I thought that CM is stripped out of unnecessary background processes and apps. As long as I'm not using any CPU or GPU intensive apps like games it should consume less battery than the stock ROM. Is there something I'm missing?

Maybe the updated kernel and drivers give better power effeciency. When the JB kernel source is released, hopefully CM10 and other AOSP ROMs will also improve.

You were saying about on screen time?
Sent from my faster than SGS3 HOX.

CM 10 really uses a lot of battery but of you could switch off wifi and 3g when not using, and clearing all the apps frequently in the recent menu may help... My battery then lasts from about the start of the day till night though the batterys now quite old.
Sent from my NexusHD2 using xda premium

i got a weird battery life yesterday, i was walking from work to home, i started watching videos on youtube, looked at the battery, 31%, after few videos looked again, still 31%, i walked 41 mins with a total of 9% of battery drain, i also played a game for about 25 mins, it was a really battery life.

BenPope said:
Maybe the updated kernel and drivers give better power effeciency. When the JB kernel source is released, hopefully CM10 and other AOSP ROMs will also improve.
Click to expand...
Click to collapse
Allright... just gonna have to play the waiting game.
XxVcVxX said:
You were saying about on screen time?
Sent from my faster than SGS3 HOX.
Click to expand...
Click to collapse
That... is not possible! How the hell did you achieve that?
Mansehej said:
CM 10 really uses a lot of battery but of you could switch off wifi and 3g when not using, and clearing all the apps frequently in the recent menu may help... My battery then lasts from about the start of the day till night though the batterys now quite old.
Sent from my NexusHD2 using xda premium
Click to expand...
Click to collapse
That's pretty much my battery life as well. Regarding age, I'm really concerned, as I'm not able to open the phone and just replace it. But I guess that much better smartphones will come along before I consider getting a new battery and it won't be worth it any more.
hopeless12 said:
i got a weird battery life yesterday, i was walking from work to home, i started watching videos on youtube, looked at the battery, 31%, after few videos looked again, still 31%, i walked 41 mins with a total of 9% of battery drain, i also played a game for about 25 mins, it was a really battery life.
Click to expand...
Click to collapse
I get that sometimes as well. I pick up the phone a couple of times and the battery is always at, say, 50%. Then, a couple of hours later I read a message and it suddenly jumps to 41 or lower. But from what I've read that's normal and no cause of concern.

XxVcVxX said:
You were saying about on screen time?
Sent from my faster than SGS3 HOX.
Click to expand...
Click to collapse
I heard what causes the CM10 to have such an awful battery life is something that was supposed to save power when you lock your phone [Which is normally quiet often] and actually causes it to depelt, so it obvoiusly doesn't affect screen time
CM10 is a horrible ROM, get something else... I used LiquidSmooth for a while, it's a great ROM
Now running ParanoidAndroid 2.53
Btw, Stock ROM had a wonderful battery life, I only realize that now ... lots of ROMs can't reach that much

SrebX said:
I heard what causes the CM10 to have such an awful battery life is something that was supposed to save power when you lock your phone [Which is normally quiet often] and actually causes it to depelt, so it obvoiusly doesn't affect screen time
CM10 is a horrible ROM, get something else... I used LiquidSmooth for a while, it's a great ROM
Now running ParanoidAndroid 2.53
Btw, Stock ROM had a wonderful battery life, I only realize that now ... lots of ROMs can't reach that much
Click to expand...
Click to collapse
That's exactly what I did, flashed the old RUU and installed all updates. I don't know how the guys from HTC managed to do it, but the battery life on Android 4.1.1 and Sense 4+ is AMAZING. I easily get 24 hours with normal usage, over 2 days if I'm really careful.

This is what I got during a night sleep with cm 10.
I installed it yesterday so its kinda new tot me. What causes this?
Sent from my HTC One X using xda app-developers app

Probably some nasty wakelocks. Install with wipe/factory reset if you didn't so already. Then try betterbatterystats (search xda) to find out what is causing wakelocks.

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.
-----
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

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...
Click to collapse
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
Click to expand...
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

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

Need some guidance :/

The note 2 is known to be the complete phone even till this day... right? and its outstanding part is the battery... right?
I see many people get 5 hours minimum screen on time with usage more than me! My max is 5 hours if I'm lucky, mainly only 3 and a half hours screen on a day. Ive tried a bunch of different roms but no luck, even stock with UV but nothing :/
Is there a combination of rom and kernel that someone could recommend me to see if it'll help? I prefer AOSP roms but there battery hasnt been the best for me but maybe with UV itll work out better?
Any help is appreciated
Thank you
-Imran

imran429 said:
The note 2 is known to be the complete phone even till this day... right? and its outstanding part is the battery... right?
I see many people get 5 hours minimum screen on time with usage more than me! My max is 5 hours if I'm lucky, mainly only 3 and a half hours screen on a day. Ive tried a bunch of different roms but no luck, even stock with UV but nothing :/
Is there a combination of rom and kernel that someone could recommend me to see if it'll help? I prefer AOSP roms but there battery hasnt been the best for me but maybe with UV itll work out better?
Any help is appreciated
Thank you
-Imran
Click to expand...
Click to collapse
I believe, TW Roms have better battery life than AOSP ones.(haven't proved it) Additional mods, like Note 3 mods or S5 mods, tend to consume more RAM + Battery 'cause they are designed for phones with higher RAM, so try to avoid them. Root apps like Greenify, freezing some apps using TB, and doing the common saving tips(auto brightness, silent mode, off mobile data, etc.) will also help a lot in battery.
Last thing, batteries also tend to degrade in quality, so sometimes it falls short of its expected length of use.
Hope I help even a little.

Hmm I could be more battery cautious, what rom is designed for battery performance like the meanbean rom but that's not for the international version :/
Sent from my GT-N7100 using xda app-developers app

BUMP

imho, using aosp on n7100 is not a smart choice. in my experience they have almost the same battery drain as sammy. i tried many roms, now i'm testing revolution hd 23 and with some greenifying everything runs smoother, i have 4% of drain during all the night standby with wifi on, i can't get better on any other rom. i think i'll trust this rom for a while. cheers

Hmm I've tried the android revolution rom and it didn't really suit my usage battery wise. I think I may need a new battery since this one has been going for a while :-/
Sent from my GT-N7100 using xda app-developers app