Develop Bugs

oh dear "android os"...why my battery?

I am a happy owner of HOX. everything seems to be perfect except the battery drain..
Either Android OS or Android system consumes battery like hell...
After charging the phone for 100%, i just unplugged it and after 30 mins battery was 73%...and battery temperature was freaking 50C which is like 120C for batteries!!!!! I restarted the phone which made the temperature worse...then after few mins again restarted and now the phone is going in deep sleep..this has happened many times and surprisingly batterystats says there is no specific culprit..just Android OS or Android system.
I read somewhere that it is actually Android bug and google are trying to fix it..but why does it happens randomly? And this problem normally happens when battery is fully charged...
btw i am on ViperX 3.3.8 and on stock kernel
Any help would be appreciated!
Thank You

Rom? Kernel?

ROM kernel details updated on 1st post...btw viperx3.3.8 with stock kernel

This is also happening to me Im also using viper 3.3.8 on the kernel provided by Venom, Im gussing its a bug on 3.3.8

BetterBatteryStats might help you identify what causes this drain.

orl.on.dow said:
BetterBatteryStats might help you identify what causes this drain.
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Click to collapse
Thanks for trying to help but I have already mentioned in the thread that it is not saying which app is causing problem..just Android OS and below that Android system

Heres the easy way out, look at my signature, open the link , there you'll see the guide for ultimate battery on HoX , And also there is a link for WAKELOCKS guide. If you do decide to follow my guide but before that check your wakelocks i ensure you that you'll be hiting minimum 5 hrs screen time with heavy usage ( no gaming )

Today's usage as recorded few hrs ago...
total 4h 37m on battery from 100% down till 43%...3 mins data on only..onle 1 call..2 texts..thats all..wth...will be posting screenshots soon..

arpith.fbi said:
Thanks for trying to help but I have already mentioned in the thread that it is not saying which app is causing problem..just Android OS and below that Android system
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Click to collapse
Sorry I thought you were talking about the stock battery stats. Have you looked at the kernel wakelocks and partial wakelocks sections? That's where you'll get the most useful information.
Sent from my HTC One X using xda premium

best battery saving rom for galaxy w?

hi guys.. like the title said.. whats the best battery saving rom for our device? now i am using one of a kind. realy good rom btw

Stock rom or pure cm9 rc8 by sir arco
Sent from my GT-I8150 using xda app-developers app

If you like Ics, I suggest SmoothieIcs. I keep battery on %100 for 3 hours.

hean_burak said:
If you like Ics, I suggest SmoothieIcs. I keep battery on %100 for 3 hours.
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Is there a smoothieics for galaxy w?

Yes there is. It is name of The Rom. There is rom thread on forum.

hean_burak said:
Yes there is. It is name of The Rom. There is rom thread on forum.
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This one? "http://forum.xda-developers.com/showthread.php?t=2151973"

It is here: http://forum.xda-developers.com/showthread.php?t=2092971&highlight=smoothie

XxInMotionxX said:
hi guys.. like the title said.. whats the best battery saving rom for our device? now i am using one of a kind. realy good rom btw
Click to expand...
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I can get 40 hours comfortably out of a charge on CM10 A6 or CM10 B1

hundred_miles_high said:
I can get 40 hours comfortably out of a charge on CM10 A6 or CM10 B1
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Can u see your battery graph? I wanna see your awake to sleep ratio, Wifi etc

egagah said:
Can u see your battery graph? I wanna see your awake to sleep ratio, Wifi etc
Click to expand...
Click to collapse
Uploaded with ImageShack.us
Screenshot from Monday AM. Please ignore the mobile network signal bar, every version of Cyanogenmod 10 I've used has the same problem where it stops logging data after about 10 - 15 hours, but my phone does pretty much always have at least 2 bars of signal where I live and work (split about 60/40 between 2G & 3G/HSDPA)
If it helps, here are the cpu states for the last 55 hours useage:
Uploaded with ImageShack.us

The best battery saving rom is CM9 with the older 2.6.35 kernel. So for example Arcos CM9 RC2 or RC3, the older Slimbeam ROM or this mentioned SmoothieICS. (The other two ones are just modified and themed CM9 RC2 or RC3) For even better results you need an undervolting 2.6.35 Kernel.
My battery for example lasts 3-5 days with CM9 RC2 and Arcos stock kernel. With my personal uv kernel it lasts even more.

honeyx said:
The best battery saving rom is CM9 with the older 2.6.35 kernel. So for example Arcos CM9 RC2 or RC3, the older Slimbeam ROM or this mentioned SmoothieICS. (The other two ones are just modified and themed CM9 RC2 or RC3) For even better results you need an undervolting 2.6.35 Kernel.
My battery for example lasts 3-5 days with CM9 RC2 and Arcos stock kernel. With my personal uv kernel it lasts even more.
Click to expand...
Click to collapse
But smoothieics claims it has deep sleep implemented xD. Any way I can get a hold if your custom kernel?

egagah said:
But smoothieics claims it has deep sleep implemented xD. Any way I can get a hold if your custom kernel?
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Sure. Just drop me your e-mail via PM and I will compile one with stock voltages you then can adjust with incredicontrol to your needs. It´s because my kernel is preset to extreme undervolting voltages and that might be to much undervolting for your cpu.
Btw Arcos kernel has also deep sleep implemented and all custom kernels are basing on arcos kernel, so not only SmoothieICS is going into deepsleep but all custom roms are doing it as well.

hundred_miles_high said:
Uploaded with ImageShack.us
Screenshot from Monday AM. Please ignore the mobile network signal bar, every version of Cyanogenmod 10 I've used has the same problem where it stops logging data after about 10 - 15 hours, but my phone does pretty much always have at least 2 bars of signal where I live and work (split about 60/40 between 2G & 3G/HSDPA)
If it helps, here are the cpu states for the last 55 hours useage:
Uploaded with ImageShack.us
Click to expand...
Click to collapse
your awake time to screen on ratio suggests to me that your battery life could be far better than it currently is! download WLD or wakelock detector and see what is keeping your phone awake so frequently =). Then u can get greenify to hibernate the app when u r not actually using it =D

egagah said:
your awake time to screen on ratio suggests to me that your battery life could be far better than it currently is! download WLD or wakelock detector and see what is keeping your phone awake so frequently =). Then u can get greenify to hibernate the app when u r not actually using it =D
Click to expand...
Click to collapse
Unfortunately the two main culprits are K9 email and ebay, both of which are pretty important for me to have running and not in a hibernated state.
However, from the last charge on my phone I have got 2 days, 4 hours, 29 mins with 12% battery remaining - so could be worse I suppose
Thanks for the suggestion though :good:

New rom!
XxInMotionxX said:
hi guys.. like the title said.. whats the best battery saving rom for our device? now i am using one of a kind. realy good rom btw
Click to expand...
Click to collapse
Now I'm using EHNDROIDX 4.4.2 and I think it's good!

Pathetic battery life on custom kernel

Hello I have a very stupid issue and a weird one.
Whenever I flash a custom kernel I get terrible battery life on my note2. When I flash stock kernel every thing is fine. Donno whats wrong.
I am on Omega rom btw.
Posted from Macbook running on Windows 98

nidhish91 said:
Hello I have a very stupid issue and a weird one.
Whenever I flash a custom kernel I get terrible battery life on my note2. When I flash stock kernel every thing is fine. Donno whats wrong.
I am on Omega rom btw.
Posted from Macbook running on Windows 98
Click to expand...
Click to collapse
Need more info on your rom and kernals you are using.redpil got performance but not the 7-9hrs of screen on time
Omega+devil 3.0.78 or neak1.9 are both awesome with omega.Do you oc/uc/uv your device?also TRY resetting your battery Fuel ChiP via st Tweaks

Did you try a 'battery life' governor and scheduler?
You should do some analysis after flashing the custom kernel and wait for 2~3 cycles before having a clear idea.

Im on Andriod Revolution HD v17 by mike1986 rom, what is the best kernel suits it Tq

Spitwista said:
Need more info on your rom and kernals you are using.redpil got performance but not the 7-9hrs of screen on time
Omega+devil 3.0.78 or neak1.9 are both awesome with omega.Do you oc/uc/uv your device?also TRY resetting your battery Fuel ChiP via st Tweaks
Click to expand...
Click to collapse
I was on Persus initially but coz of battery drops I stopped using it.
Then recently I went with redpill and same stuff happened. When the phone is not being used it deep sleeps very well but as soon as I start using its a flowing river. Battery drops like crazy. I have random reboots and seriously pissed.
I haven't messed with any cpu settings. Kept them as they were before.
Posted from Macbook running on Windows 98

How do I do that reset chip thing?
Posted from Macbook running on Windows 98

nidhish91 said:
How do I do that reset chip thing?
Posted from Macbook running on Windows 98
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1645853
---------- Post added at 01:19 PM ---------- Previous post was at 01:10 PM ----------
nidhish91 said:
I was on Persus initially but coz of battery drops I stopped using it.
Then recently I went with redpill and same stuff happened. When the phone is not being used it deep sleeps very well but as soon as I start using its a flowing river. Battery drops like crazy. I have random reboots and seriously pissed.
I haven't messed with any cpu settings. Kept them as they were before.
Posted from Macbook running on Windows 98
Click to expand...
Click to collapse
Install greenify from playstore for deep sleep problems .and igio90 KING OF JELLYBAM android tweaker for deep sleep and media scanner tweaks

I have greenify and have added all the apps in it. Most tweaks tried still this problem..really upset.
Posted from Macbook running on Windows 98

nidhish91 said:
I have greenify and have added all the apps in it. Most tweaks tried still this problem..really upset.
Posted from Macbook running on Windows 98
Click to expand...
Click to collapse
Have you tried battery monitor to see what's doing this though? Seems like an odd problem. Have you wiped cache/dalvik etc? Unlikely that it would solve anything, but try it out.

tuxonhtc said:
Have you tried battery monitor to see what's doing this though? Seems like an odd problem. Have you wiped cache/dalvik etc? Unlikely that it would solve anything, but try it out.
Click to expand...
Click to collapse
Yes I tried that, tried betterbatterystat and it gives me those wakelocks that are common in Note 2. Donno the actual stupid reason behind it

nidhish91 said:
Yes I tried that, tried betterbatterystat and it gives me those wakelocks that are common in Note 2. Donno the actual stupid reason behind it
Click to expand...
Click to collapse
You don't have touchwake/wakeup lag fix flashed right? Because those drain battery from my experience. And wakelocks are most likely some app than kernel.

tuxonhtc said:
You don't have touchwake/wakeup lag fix flashed right? Because those drain battery from my experience. And wakelocks are most likely some app than kernel.
Click to expand...
Click to collapse
No I dont have it. I did the resetting of the battery chip by using the method from the link the other member provided. Lets see how it ends.

88sexylady said:
Im on Andriod Revolution HD v17 by mike1986 rom, what is the best kernel suits it Tq
Click to expand...
Click to collapse
Neak 1.9 is really smooth and got amazing battery 7-9hrs screen on time.IMO perseus lags a bit.Devil kernal is my performance goto though

[Q] Huge battery drain whith

Hi
Recently I've installed Sultan's CM11 rom and kernel and so far the rom is much mor responsive than the stock samsung rom. Hovewer, when I use applications, my battery goes down very fast, for example if I listen to music for an hour with the Apollo music player I can lose 20% of battery. I've also noticed that when I use an app, the CPU is always at 1516 Mhz and it does not go down, thus using alot of power.
People commenting in the thread all seem to report batter battery life than other roms, but this is not the case for me.
thank you

Flash another rom then.
Or install Gsam and Gsam root companion and find out what exactly is draining you.

gab1213 said:
Hi
Recently Ive installed Sultans CM11 rom and kernel and so far the rom is much mor responsive than the stock samsung rom. Hovewer, when I use applications, my battery goes down very fast, for example if I listen to music for an hour with the Apollo music player I can lose 20% of battery. Ive also noticed that when I use an app, the CPU is always at 1516 Mhz and it does not go down, thus using alot of power.
People commenting in the thread all seem to report batter battery life than other roms, but this is not the case for me.
thank you
Click to expand...
Click to collapse
Did you flash the kernel update that was in the OP?

jrc2 said:
Did you flash the kernel update that was in the OP?
Click to expand...
Click to collapse
Yes I've just done that today and the problem no longer seems to be there anymore

Horrible battery life all of a sudden on 10.0.7

Am I the only one who is all of a sudden having horrible battery life on 10.0.7?
Used to get 6-7 hrs of SOT, now I am getting around 2. Cant think of any changes to my apps or usage history
1905 verizon in USA

Custom kernel?

rohmbd said:
Custom kernel?
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Click to collapse
Yes, have been using the EK kernel manager with just default settings.

It's due to OnePlus brain service. Search in the forum for it and you'll find a couple of ways to stop it.

rohmbd said:
It's due to OnePlus brain service. Search in the forum for it and you'll find a couple of ways to stop it.
Click to expand...
Click to collapse
thanks. Seems like that is very hard to do. I might just disable the custom kernel. Honestly the only reason I installed it was so that I could change the vibration intensity. If anyone knows of another way to do that outside of custom kernel manager I would be all for it!

I just flashed a magisk module
---------- Post added at 04:38 PM ---------- Previous post was at 04:30 PM ----------
Cowbell_Guy said:
thanks. Seems like that is very hard to do. I might just disable the custom kernel. Honestly the only reason I installed it was so that I could change the vibration intensity. If anyone knows of another way to do that outside of custom kernel manager I would be all for it!
Click to expand...
Click to collapse
https://forum.xda-developers.com/oneplus-7-pro/help/update-to-10-3-0-battery-drain-t4026327/amp/

I also have extreme battery drain especially when using the phone. Idle it uses not much blatter, when using I get two hours Sot.
I also have ExKernelManager with default kernel because it fixed my WiFi issue and the phone sleeps as a baby at night.
Regards ysco..

ysco said:
I also have extreme battery drain especially when using the phone. Idle it uses not much blatter, when using I get two hours Sot.
I also have ExKernelManager with default kernel because it fixed my WiFi issue and the phone sleeps as a baby at night.
Regards ysco..
Click to expand...
Click to collapse
sounds like the issue is probably the kernel then. Im going to just go back to stock I think

As I read in the forum it is related to oos version 1.0.0.3 and oos 1.0.0.7 and not kernel related.
I flashed the fix mentioned in the thread but no luck for me. Cluster 3 remains on 2999 MHZ and CPU tmp still on 50+.
Seems flashing to build 1.0.0.6 is the only way to fix this issue.
Edit: I just set the max CPU from cluster 3 to lowest settings and the CPU dropped right away and temp is now steady around 30/35 degrees. For me a temporary solution till next oos update.
Regards ysco..

I got the same issue. Getting not even 2h SOT. No custom kernel here, just basic OS with darkmode on & on WIFI connection.
(Currently 1:28h screen usage at 29% battery left)
Any fix in sight for this?

steigi89 said:
I got the same issue. Getting not even 2h SOT. No custom kernel here, just basic OS with darkmode on & on WIFI connection.
(Currently 1:28h screen usage at 29% battery left)
Any fix in sight for this?
Click to expand...
Click to collapse
Obviously a widespread issue... I think next step is for us to take it to OnePlus forums and their tech support

Cowbell_Guy said:
Obviously a widespread issue... I think next step is for us to take it to OnePlus forums and their tech support
Click to expand...
Click to collapse
Phone is almost unusable for me now with such crappy battery life

Just install arter97 kernel, worked for me and clusters are running nicely now and CPU temp is low.
Battery life is improved now because cluster 3 is not hanging on 2999mhz anymore.
Just download the kernel from here https://forum.xda-developers.com/on...development/arter97-kernel-oneplus-7-t3952578
Just flash in your favorite kernel manager the new kernel, magisk will be preserved. First boot takes some time after flashed the kernel.
Regards ysco..

ysco said:
Just install arter97 kernel, worked for me and clusters are running nicely now and CPU temp is low.
Battery life is improved now because cluster 3 is not hanging on 2999mhz anymore.
Just download the kernel from here https://forum.xda-developers.com/on...development/arter97-kernel-oneplus-7-t3952578
Just flash in your favorite kernel manager the new kernel, magisk will be preserved. First boot takes some time after flashed the kernel.
Regards ysco..
Click to expand...
Click to collapse
thanks for the advice, interesting that it worked. I will give it a try. Seems like that kernel was just updated this week

ysco said:
Just install arter97 kernel, worked for me and clusters are running nicely now and CPU temp is low.
Battery life is improved now because cluster 3 is not hanging on 2999mhz anymore.
Just download the kernel from here https://forum.xda-developers.com/on...development/arter97-kernel-oneplus-7-t3952578
Just flash in your favorite kernel manager the new kernel, magisk will be preserved. First boot takes some time after flashed the kernel.
Regards ysco..
Click to expand...
Click to collapse
Wow. You were Right. That kernel fixed everything.
Has that kernel been your daily driver? I think I'm sold on it now!

Cowbell_Guy said:
Wow. You were Right. That kernel fixed everything.
Has that kernel been your daily driver? I think I'm sold on it now!
Click to expand...
Click to collapse
Glad it also worked for you to.
Well i was testing and reading on the forums about the drain because I only got two hours of Sot because of cluster issue. And started testing different kernels and this one fixed everything and is my daily kernel now. Battery is improved with 90% now I have almost 3 hours Sot and 70% battery left on the first run after installing this kernel.
Regards ysco..

Just a update with the used kernel I discribed earlier.
7 hour Sot and 10% left, never had such good battery on my former oneplus devices then I have on the 7t now. So no issues anymore with battery drain.
Regards ysco..

ysco said:
Just a update with the used kernel I discribed earlier.
7 hour Sot and 10% left, never had such good battery on my former oneplus devices then I have on the 7t now. So no issues anymore with battery drain.
Regards ysco..
Click to expand...
Click to collapse
Mine is the exact same

Clearing cache and dalvik fixed the issue completely for me.

SFCurley said:
Clearing cache and dalvik fixed the issue completely for me.
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Click to collapse
How did you do that? I don't know how without TWRP