Battery drain without any wakelock or app drain - Nexus 6P Q&A, Help & Troubleshooting

Hi, I experienced some really good battery times back then, but then, when the AK v63 came out and I flashed it, I started to have battery drain. Then I wiped my Nexus 6P and flashed stock AOSP ROM but it didn't help, then I tried PureNexus, but not victory over there too.. I tried any other kernel that worked for me before, but nothing helped - the battery life still something around and less than 3 hours of SOT.
It seems that my phone sometimes does not want to go Dozing and sometimes it keeps WiFi on even when it is turned off...
It seems that there isn't any app or wakelock that is keepong my phone awake and is draining my battery (BetterBatteryStats doesn't show nothing bad)..
I never experienced such a bad battery life on my Nexus 6P.
Can someone help me? Thank you.
P.S.: I can provide more info in case of need.

Related

Battery calibration, galaxy tab 2 CM9

Battery calibration, galaxy tab 2 CM9CM9, and at first glance it seemed that the battery was draining way too fast.
So after some research, I found a solution to this problem. When I had the stock rom, the battery life was like 15 hours, all day wifi on. But when I moved to cyanogenmod 9, the battery life dropped drastically to about 6 hours, minimum brightness levels. So got back to stock. Soon I was missing CM9
Suddenly came to my mind that maybe the problem wasn't CM9, since I have read that many people is very happy with battery endurance.
When we flash a new from, the battery data remains intact, this sometimes causes the new rom to have a bad reading of the stats.
The solution I found is battery calibration. You can find an app for free in the market. What it does is, it wipes your battery data so the new rom generates fresh data.
You just have to get your GT2 fully charged, then calibrate with the app.
Since I did this, I feel battery life has improved, in fact, I think it is better than before CM9.
YOU SHOULD GIVE IT A TRY.
it worked fine for me. :laugh:
sorry
The post was right before sending it.
Tried to attach a pic, but I'm new here guys
Battery calibrate only deletes the existing battery usage data. It gives you a fresh look at what is draining your battery. This has been argued many times in just about every other device forum. Here is the answer from the google rep.
https://plus.google.com/u/0/1050519...dVxPT#105051985738280261832/posts/FV3LVtdVxPT
:good:

Does KitKat consume more battery in first full cycle(phone idle on top)?

Hi all,
I've flashed KitKat yesterday, and charged it fully overnight. (Full clean flash with wugs toolkit)
Today I did nothing with it from 8 o-clock to 18 o-clock. Battery went down to 55% percent in that time (used to be like 86 on 4.3).
"Phone idle" is at the top of the processes.
Is this a one-off. Is this the battery calibrating itself?
Phone was on 3g/2g all day and has semaphore kernel installed. Which should be awesome in terms of battery.
Thanks
Sent from my Nexus 4 using Tapatalk
any rom will use more battery the first 2 battery cycles. its when all the background syncing with google services happens. and battery life has more to do with your personal setup, your personal use, and the quality of signal you have than with anything else.
simms22 said:
any rom will use more battery the first 2 battery cycles. its when all the background syncing with google services happens. and battery life has more to do with your personal setup, your personal use, and the quality of signal you have than with anything else.
Click to expand...
Click to collapse
Allright thanks.
Weird thing is that it never happened when i installed pa again. 50% down is a lot for a phone that's just sitting there.
But i'll see tomorrow, installed bbs just to monitor it

Terrible Screentime Battery Life

I have a Sprint Galaxy S5 running MOAR ROM and Ktoonsez kernel and I started using an app that tracks screen time and I've noticed I only get about 2-3 hours of screentime on a full charge.
To me, this seems pretty awful and other people using Ktoonsez report having excellent battery life but this doesn't seem to be any better than stock ROM/kernel. There's also nothing abnormal on the battery settings screen. Is my battery drain abnormal and is there anything else I can do to improve it?

Poor batter life

I changed from Note 3 to s 6 edge plus recently
The battery drops 5% per hour overnight when not in use. If I go to bed with less than 40% battery at night I am sure to wake up with my phone switched off in the morning.
When in use with screen on, the battery drips one percent every two minutes. This is the worst battery life I have ever seen in a phone. I was a long loyal customer of samsung and this is my last samsung phone ever.
Extremely disappointed
Please post your battery stats ? so we can have a better understanding of your problem. I suggest you install 'Doze' which should stop unnecessary apps from connecting to the internet and causing your phone to awake from deep sleep.
Dear Akbar 11
Heres the battery stats....is it normal?
I had the same issue, and as far as I managed to find out, it is a bug in Samsung's kernel. Flashing Arter97 kernel solved the issue for, but do post battery stats from SmartManager. If it says 'Android' or 'Android OS', then you have the same problem many of us do.
I don't think it's a kernel problem. My android OS is very low 4%. Like zoolok said post your battery stats from settings, battery, battery usage
I have the same problem. Battery was great before I flash custom rom. After going back to stock I have big battery draining. I must stay on custom rom. With Audax rom and Skyhigh kernel i have great battery life.
You have either messed up something big or you have an app in the background that is eating up your battery like no tomorrow.
And the reason i say that is because i recently got this battery life on my Galaxy S6 edge+.
And this was taken 2 days ago.
Here i use the CRISSCROSS ROM, AudaxPro Kernel, Greeinify and Samsung's own 'Appoptimizing' feature (same as Doze in Android 6.0).
So my battery life is pretty awesome.
i have problem whit battery lose 25% when i sleep
This is a usual day with s6 edge plus
Any help?
jonynoname said:
Any help?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1179809
i have this problem battery ... if u fixed it tell me how?
Well I was expecting Google Play Services to be eating your battery (which is quite common) but it looks like your Andriod OS is eating the most battery. I would uninstall Facebook and use the web version it always helps with the ram and battery furthermore, turn off location if you are not using it and check accounts which are being synced. These are the only tips I can give you as I have never seen Android OS drain so much battery.
Since a few days Google Play Store is eating up my battery: I go to sleep with 100% batt and wake up with 50%, if I check batt stats on top I have play store at 45%, with 5h active a d 2h of CPU.
Follows Android system at 5%.
Going crazy why...
jonynoname said:
This is a usual day with s6 edge plus
Click to expand...
Click to collapse
You've charged your phone 4 times during that day. I can't see what's the interesting part here.

Battery Issues/Not discharging to 0%/terrible life

VS995, Rooted, been running WETA since last January.
------------
About 2 months ago I noticed whenever my phone got to 15% battery left when I plugged it in it would reboot. I ignored the issue for a while because I rarely let it get that low.
Recently though I notice my battery life getting very bad. Insanely bad. Not even 2 hours of SOT, dying in 3 hours just using hotspot with no SOT. Losing 10% in a few minutes of active use sometimes.
So I tried some battery calibration apps, tried recharging to 100% and draining again. Tried wiping battery stats. Tried different ROMS.
I flashed desolation ROM tonight and the battery life seems to be really good on it but it ended up shutting off at 24% left.
Battery apps say my battery is in good health, but I'm wondering if the battery itself is bad? Any tips or advice or help of any kind is appreciated. Thanks
imucarmen said:
VS995, Rooted, been running WETA since last January.
------------
About 2 months ago I noticed whenever my phone got to 15% battery left when I plugged it in it would reboot. I ignored the issue for a while because I rarely let it get that low.
Recently though I notice my battery life getting very bad. Insanely bad. Not even 2 hours of SOT, dying in 3 hours just using hotspot with no SOT. Losing 10% in a few minutes of active use sometimes.
So I tried some battery calibration apps, tried recharging to 100% and draining again. Tried wiping battery stats. Tried different ROMS.
I flashed desolation ROM tonight and the battery life seems to be really good on it but it ended up shutting off at 24% left.
Battery apps say my battery is in good health, but I'm wondering if the battery itself is bad? Any tips or advice or help of any kind is appreciated. Thanks
Click to expand...
Click to collapse
Dude the answer is in the question, it's definitely the battery ?.. I've had this problem on my g3 and now on this phone.. One of my batteries dies at 20%
Lol just buy a new battery
Still_living714 said:
Dude the answer is in the question, it's definitely the battery .. I've had this problem on my g3 and now on this phone.. One of my batteries dies at 20%
Click to expand...
Click to collapse
jody2k said:
Lol just buy a new battery
Click to expand...
Click to collapse
I just wanted to make sure because I've never experienced this issue before. I even hand my smartphones down to my mother and they tend to get over 2 years of use and I've never had to buy new batteries. Thanks for the feedback
If it drops from 24% to 0 then im pretty sure its a damaged battery try it ypu can buy it for less than 20 dollars on ebay
If it drops gradually in standby you could have also a battery drain bug but this is not the case here

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