Database Users

Battery life absolute trash?

So my N7 arrived two days ago, and I immediately unlocked, rooted, and flashed some things. Currently running Codename Android with Trinity Kernel.
My battery is absolute crap now though. Its been two days so I thought the battery more but have settled by now. All auto sync off, brightness at lowest setting, apps sync every 4 hours, still bad! Does calibrating still work? I read somewhere that it was debunked and it didn't work. I would appreciate any help. I mean, my Maxx is getting better battery life.
I uploaded some screenshots of the battery after only 1 and a half hours.
Sent from my Nexus 7 using Tapatalk 2

dafuq?
My Battery life is without doing nothing ~1-2weeks (in my with 58% xD)
Use Stock Kernel

renes2 said:
dafuq?
My Battery life is without doing nothing ~1-2weeks (in my with 58% xD)
Use Stock Kernel
Click to expand...
Click to collapse
Where can I find that to flash it?
Sent from my Nexus 7 using Tapatalk 2

Aliceics said:
Where can I find that to flash it?
Sent from my Nexus 7 using Tapatalk 2
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Click to collapse
Go to the motley kernel thread in Original Development. He provides a mirror link for the stock kernel
I loved Trinity and the TKT app but for some reason im getting much better battery life with motley kernel. I originally did some troubleshooting and fixed some apps that were causing wakelocks. My battery life got a little better but not by enough (could only get 3 or 4 hrs screen on) so i switched kernels.
If you feel like experimenting do this:
Nandroid
Wipe Cache + Dalvik
Wipe System
Factory Reset
Flash CM10 nightly (any rom of your choice)
Flash GApps
Flash motley kernel (i used the 484 GPU version)
Fix permissions
Reboot
I get awesome battery life now and performance is great.

Your title should be something like this: "After rooting and installing battery draining rom and kernel I get bad battery life on my N7"
Stock JB and kernel should yield decent batter life.
With the proper rom and kernel the Nexus 7 easily match or better the googles battery life claim.
FYI the latest Trinity kernel is a battery hog.

noobandriod said:
FYI the latest Trinity kernel is a battery hog.
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Click to collapse
if you use it at 1.7ghz it will be, but thats obvious. at 1150mhz, its as quick and wonderful on batteries.

simms22 said:
if you use it at 1.7ghz it will be, but thats obvious. at 1150mhz, its as quick and wonderful on batteries.
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Click to collapse
I wouldnt go as far as saying its a battery hog, but i ran the kernel at stock clocks and while performance was much better than stock i still had tons of drain that i now dont have with a different kernel.

Ran Trinity kernel at 1150mhz and had awful battery. Back on stock ROM and kernel and seems to have improved a lot.
Sent from my Nexus 7 using xda app-developers app

I feel like the battery is pretty decent...
Get off those custom Roms and kernels until you understand how the device is meant to perform.

You appear to have 87% after 1.5 hours, that equals about 10 hours, how is that bad? I get about 8 hours if I am intensely playing with screens, apps and games, 2 days if I'm not doing much. Loses 2% at night with wifi off. No root.

trinity kernel and the pure aosp rom, at 1150mhz. id say not bad at all..

Trinity Kernel is a good kernel. I went overboard by saying it was a battery hog. I did have it overclocked up to 1500hz on-demand and it ate up battery faster then I would like. But this is with the newest one, a few of the older ones worked out better for me though.

noobandriod said:
Trinity Kernel is a good kernel. I went overboard by saying it was a battery hog. I did have it overclocked up to 1500hz on-demand and it ate up battery faster then I would like. But this is with the newest one, a few of the older ones worked out better for me though.
Click to expand...
Click to collapse
yea, overclocking is mostly for fun, definitely not for battery life

640k said:
Get off those custom Roms and kernels until you understand how the device is meant to perform.
Click to expand...
Click to collapse
I have some problems with *wakelock*

ROM with best battery life?

Coming from an LG G2 (long story), battery life is what I miss the most. The nexus 4 has about half the screen on time than my g2 did.
I'm already unlocked and rooted but still stock ROM. Are there any Roms that significantly improve battery life?

I found smart 3G on Cataclysm to be pretty good at saving battery.

ROMs and kernels have little to do with battery. Your usage, signal for mobile data and WiFi, screen brightness, your configuration for location services, gps and the like and your apps determine your battery life.

brian85 said:
Coming from an LG G2 (long story), battery life is what I miss the most. The nexus 4 has about half the screen on time than my g2 did.
I'm already unlocked and rooted but still stock ROM. Are there any Roms that significantly improve battery life?
Click to expand...
Click to collapse
I'd try Paranoid. I used it for a while after using stock and I found that the battery improved.

roms have absolutely zilch when it comes to battery life. only thing rims can do with battery is reduce it. generally, the more added mods/features a rom has, the worse the battery life. but not always. battery life is determined by hiw you personally use your phone, how you set it uo, what apps you use, and the quality of your phone/data connection. everything else, including kernels, have a very minimum effect on battery.

Well
When I was with Carbon, the play store thing killed my battery to 3hrs on screen time
Switched over to Purity Rom with Hells kernel and I have 5-6 on screen time
WiFi on all the time, no data or GPS or Bluetooth.
Mostly Reddit and a game or two, and a movie

Not the Rom but the Kernel is decisive

Nuhro said:
Not the Rom but the Kernel is decisive
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Click to collapse
Kernel doesn't make much of a difference either. See simms22 post above
Sent from my Nexus 5 using XDA Free mobile app

jd1639 said:
Kernel doesn't make much of a difference either. See simms22 post above
Sent from my Nexus 5 using XDA Free mobile app
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Click to collapse
Okay, but why is the battery life better with an another kernel?
I use the HeelsCreed kernel and Mahdi rom. My battery life is better with the HeelsCreed kernel as with the Kernel of the Mahdi rom.
P.S.: I know my english is bad, sorry for that

Nuhro said:
Okay, but why is the battery life better with an another kernel?
I use the HeelsCreed kernel and Mahdi rom. My battery life is better with the HeelsCreed kernel as with the Kernel of the Mahdi rom.
P.S.: I know my english is bad, sorry for that
Click to expand...
Click to collapse
set up your CPU and everything else just how the kernel sets it up for you, and you'll get the same battery life. be more active, set things up manually.

brian85 said:
Coming from an LG G2 (long story), battery life is what I miss the most. The nexus 4 has about half the screen on time than my g2 did.
I'm already unlocked and rooted but still stock ROM. Are there any Roms that significantly improve battery life?
Click to expand...
Click to collapse
can you tell the story please , anyway ROM has weee little to do with battery life , its mostly on how you use it and the kernel you are using as well as sync loops and dodgy leaky apps , my personal setup is rom = paranoid android and kernel = hellsdoctor , using synapse app i switched the maximum clock speed to 1.2 Ghz , and changed the maximum core online to two, gpu is overclocked by default , rest is, location settings are turned off only turned on when required , brightness is set to 50 % , no dodgy apps on the phone , i can squeeze about 5 and half hours sometimes 6 its good enough for this battery size though and hope it works out for you :good:

Android 6.0 Marshmallow battery discussion

This thread is for battery life discussion of android 6 Marshmallow.
I took the plunge recently and installed cm13 nightly on my phone after a couple of days with sultan's cm13 ROM. One notice that the android team really got the battery optimisations right this time especially when coming from android 5.1. The cell standby and android system bug is now gone and the phone can now be in standby for a long time. My usage pattern is browsing, reading in Adobe reader, listening to mucisc with bluetooth headphones, facebook, wassup, some youtube videos, sms and few calls. I play farm heros sometimes but I don't play graphical intensive games.
Here are 2 screenshots of my phone. It was charged to 100% at 8:00am on 30/11/2015 and it still has 41% left as at 10:00am 02/12/2015 Granted I have only used it on wifi and I configured wifi to automatically disable 5 minutes after the screen is off.
You can post you battery life too.

We already have a thread here: http://forum.xda-developers.com/showthread.php?t=2753354 @Darth @Heisenberg please close off this thread if need be?

Bobbi lim said:
We already have a thread here: http://forum.xda-developers.com/showthread.php?t=2753354 @Darth @Heisenberg please close off this thread if need be?
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Click to collapse
If a moderator deem it fit, he/she can close the thread but I felt it will be nice to make a dedicated thread for Marshmallow instead of looking through a big thread to get the relevant information needed for a particular android version.

lallolu said:
If a moderator deem it fit, he/she can close the thread but I felt it will be nice to make a dedicated thread for Marshmallow instead of looking through a big thread to get the relevant information needed for a particular android version.
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yes.

It still sucks on mobile data. Nothing changed from Lollipop in regards of mobile data battery drain and i wish google could do something about it.

That's it! It's still on LP niveau

i had around 2 hours of screen on time and less than a day's battery life. The MMS also didn't work with WiFi connected, so I switched back to CM12.

I finally charged the phone today but not before I took a screenshot. My usage is not heavy at all so for heavy users, I guess the SOT will be longer but the total number of hours the phone was on will be lower. My usage did not change form that of 5.1 but I can definitely see a great change in standby time.

Still doesn't beat out KitKat in terms of heavy usage IMO.

The performance(yield) of the battery essuperior to android 5.1. The cycle of load lasts approximately two hours more of screen.

akiratoriyama said:
Still doesn't beat out KitKat in terms of heavy usage IMO.
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Click to collapse
Try Omniron Herna build, it does wonders on my phone regarding battery usage
Sent from my A0001 using Tapatalk

6.0 has the same battery life as 5.x for me. about 4-5h SoT.
KitKat and early 5.0 builds were clearly better with 8h SoT

Currently running Sultan's ROM CM13:
My battery life has hugely improved when I'm not touching the phone, no one app is draining way to much battery while not in the foreground.
There is one problem some people including me have been experiencing which is that Wi-Fi doesn't switch of properly and drains the battery, the only solution I found was to reboot the device after switching it off.
Not sure if this is a CM problem or the specific rom but not AOSP.
But apart from that battery life is good.

On sultan CM 13 CAF
Getting 4-5 hrs of SOT

Still waiting on a fix for mobile radio active. Had to go back to KitKat after a year on 5.x and a week or so on cm13. The difference in battery is staggering. Here's hoping Google actually finds a solution for the drain, otherwise I'm gonna have to stick to KitKat until I get a new phone.

I dont worry much abt battery charge ..currently on CM13.. dont see much of difference ... expect charge to last for 1 day.. connect to charging when home

Tech guys suggest me best battery rom for OPO don't fun with me by saying cm11s 44s. Almost 1 year stick to cm11 I need some latest android version in my device,
I'm new to xda
Thanks in advance!

Just stole myself this glorious phone yesterday (not really.. got a smokin deal) after 3 years and a month on a Nexus 4 that was left stock the entire time. My OPO is already rooted/unlocked so I'm trying to test out and find the best rom for battery life as both of the cm lollipop and marshmallow roms I've tried are about equal in terms of buttery-ness and just stick with that rom indefinitely.
Is general consensus that cm11 kit kat is far superior to the later cm roms in terms of battery life? Which exact rom would you choose as the last rom you flash onto your OPO ever?

bachera said:
Try Omniron Herna build, it does wonders on my phone regarding battery usage
Sent from my A0001 using Tapatalk
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Click to collapse
Is really smooth, whats kind of SOT are you getting with this rom? Any tips
Sent from my A0001 using Tapatalk

tankhood said:
Is really smooth, whats kind of SOT are you getting with this rom? Any tips
Sent from my A0001 using Tapatalk
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Click to collapse
oh screen on time 6 hours with browsing and light resource using gaming
every other rom falls short.
I have to say it was the november builds that got me that. with some tweaking. same tweaking I do on all roms
Sent from my Oneplus One using Tapatalk

So guys, in your opinion, which is the best Nougat ROM with the best battery life?

Been very excited about the awesome work the devs are pulling off. Just thinking which one to flash!
Sent from my Moto G (4) using Tapatalk

1chrome said:
Been very excited about the awesome work the devs are pulling off. Just thinking which one to flash!
Sent from my Moto G (4) using Tapatalk
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Click to collapse
Beanstalk Rom has the best Battery life

1chrome said:
Been very excited about the awesome work the devs are pulling off. Just thinking which one to flash!
Click to expand...
Click to collapse
Battery life depends on so many facts, I already explained this in other forums. You can't compare battery life between different types of usage. So it's to you to test with your own UNIQUE usage behavior & apps+network different roms to find your own.
For example: heavy users(draining battery within 24 hours) don't care about wake locks or Alarms, but people who let their device for hours laying on the desk does

strongst said:
Battery life depends on so many facts, I already explained this in other forums. You can't compare battery life between different types of usage. So it's to you to test with your own UNIQUE usage behavior & apps+network different roms to find your own.
For example: heavy users(draining battery within 24 hours) don't care about wake locks or Alarms, but people who let their device for hours laying on the desk does
Click to expand...
Click to collapse
That's absolutely true.
I'm more of the kind of guy who leaves the phone idle a lot. I would love a ROM which doesn't drain battery on idle.
Since I use Greenify and also don't frequently keep my data on either, I'm expecting good battery which I unfortunately don't get on my Nougat stock (it drains about 5 - 8% on idle, which seems bad for me atleast).
Agreed - it's not the final build and all but since there's no Xposed or a custom kernel available, I'm kinda stuck with stock.
I don't wanna downgrade either for the sake of battery as I simply love what Google had done with Nougat!
That's why I am considering a custom ROM [emoji12]
Sent from my Moto G (4) using Tapatalk

1chrome said:
That's absolutely true.
I'm more of the kind of guy who leaves the phone idle a lot. I would love a ROM which doesn't drain battery on idle.
Since I use Greenify and also don't frequently keep my data on either, I'm expecting good battery which I unfortunately don't get on my Nougat stock (it drains about 5 - 8% on idle, which seems bad for me atleast).
Agreed - it's not the final build and all but since there's no Xposed or a custom kernel available, I'm kinda stuck with stock.
I don't wanna downgrade either for the sake of battery as I simply love what Google had done with Nougat!
That's why I am considering a custom ROM [emoji12]
Click to expand...
Click to collapse
The unofficial nougat is quite good, as I'm also have similar usage behavior and the idle drain is OK. I don't use greenify and amplify anymore cause doze in nougat works even better then introduced in MM where I used it to get better behavior even with doze.

Android OS battery Drain Bug

For those of you who don't know what Android OS battery drain bug is, I'll explain
This bug is one of the most abominable bug you'll ever want to encounter. Many people complain of battery drain in Android N ROMs. If you open the battery thing, you'll find out that Android OS and occasionally System are consuming abnormal amounts of battery. First I suspected that its a ROM specific bug, later I discovered that it gradually keeps consuming more battery as you use the ROM. Its not limited to custom ROMs but stock roms too.
Take a look at the pic, taken from RR N. Had to immediately change the ROM due to this ghastly bug.
Please upload your opinions and mention any fixes. It'll help us all

@kpamkar
Never noticed the Android os drain you describe, but mostly I have the "cell standby" in top (or 2nd) in my battery history which also seems to be another battery drainer. I also noticed something is draining the battery faster since mm/nougat when phone is idling.
The issue was fixed when I tried extreme debloated 6.0.1 ROM from @minimale_ldz and think it's some kind of Google service screaming for a connection constantly (not sure).

Sickaxis79 said:
@kpamkar
Never noticed the Android os drain you describe, but mostly I have the "cell standby" in top (or 2nd) in my battery history which also seems to be another battery drainer. I also noticed something is draining the battery faster since mm/nougat when phone is idling.
The issue was fixed when I tried extreme debloated 6.0.1 ROM from @minimale_ldz and think it's some kind of Google service screaming for a connection constantly (not sure).
Click to expand...
Click to collapse
It's mostly in N

kpamkar said:
It's mostly in N
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Click to collapse
I agree. I'm also using N and at this moment "cell standby" is nr.1 in my battery stats. I'm also reading stories about the same drain issues on the Nexus and pixel forums using N.

The issue mostly shows up in a few days

kpamkar said:
For those of you who don't know what Android OS battery drain bug is, I'll explain
This bug is one of the most abominable bug you'll ever want to encounter. Many people complain of battery drain in Android N ROMs. If you open the battery thing, you'll find out that Android OS and occasionally System are consuming abnormal amounts of battery. First I suspected that its a ROM specific bug, later I discovered that it gradually keeps consuming more battery as you use the ROM. Its not limited to custom ROMs but stock roms too.
Take a look at the pic, taken from RR N. Had to immediately change the ROM due to this ghastly bug.
Please upload your opinions and mention any fixes. It'll help us all
Click to expand...
Click to collapse
Never had this problem. Right now, I am on LOS and Android system stands at 11% while Lineage os system stands at 7%
Sent from my XT1562 using Tapatalk

K.khiladi said:
Never had this problem. Right now, I am on LOS and Android system stands at 11% while Lineage os system stands at 7%
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Click to collapse
It'll increase gradually. Just wait

I'm on AOKP rom. my phone has been off the charger for 3 hours, Android System currently at 1%
Update: After 8 hours off the charger, still at 1%

kpamkar said:
It'll increase gradually. Just wait
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Click to collapse
I have been on LOS since the first nightly
Sent from my XT1562 using Tapatalk

Guys i was facing same issue... Ive installed custom ROM my problem solved
Sent from my SM-G928C using Tapatalk

[email protected] said:
Guys i was facing same issue... Ive installed custom ROM my problem solved
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Which ROM ?

kpamkar said:
Which ROM ?
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Click to collapse
Any rom u love to install [emoji2]
Sent from my SM-G928C using Tapatalk