Battery Drain | Different battery percentages on recovery and loaded OS. - General Questions and Answers

First of all, I already made this post on my device's forum: https://forum.xda-developers.com/galaxy-s5/help/huge-android-android-os-battery-drain-t3702666
I don't know what to try anymore, I even bought a new battery, last thing I tried was flashing a LineageOS rom without Gapps, and drain was the same.
Today, while flashing something on TWRP I realized that battery was at 59% on the TWRP interface, and before restarting the phone into TWRP battery was 30% , what I can do? I already tried some battery calibration apps and charging to 100% discharging to 0 and charging again to 100 and keep restarting until it stays 100%...

I see its a normal behavior
Clash of clans is not a light game
It loads up your CPU and ram
The more time you play with CoC
The more the CPU heats up
The more it uses more battery juice

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[Q] Problem with Battery Calibration Nexus

Hi
I have tried to get the battery to calibrate to 100% using the Battery Calibration 1.3 Nexus app.
I have thalamus 2.6.35.14 r2 kernel installed on my phone which is a requirement of the Calibration app.
I have done tried it twice and successful got it to achieve learning mode but it did fully charge, but the battery age was only reading to 94% when I restarted it in the app. I wanted to try it once more and power off instead of restarting it, but Learning mode will not activate any more.
Learning mode gets activated when the battery drains to 3201mV, but mine won't activate, it goes to 3190mV and my phone shuts down. I have tried to reset the battery stats, wipe delvik cache. I did a have modded ver of the kernel 2.6.35.14, so I installed the above kernel but no joy.
Does any one have any ideas? I am quite frustrated... Tried it about 5 times tonight to activate learning mode, but no joy....
I doubt there is need for a "battery calibration app".
Just charge it full and delete /data/system/batterystats.bin
and on next restart it will relearn and calibrate on the battery.
I have done that before, and delete the battery stats, every time I install a new kernel. Phone shutdowns at 8%. I want the phone to shutdown at 0-1%
I read somewhere that the 95% full charge on the Samsung Nexus is intentional. Li-ion batteries don't like to be charged at 100% and drained near 1%. The battery is kept at its optimum charging capacity at 95%.
I don't use battery calibrators
jbm76 said:
I have done that before, and delete the battery stats, every time I install a new kernel. Phone shutdowns at 8%. I want the phone to shutdown at 0-1%
Click to expand...
Click to collapse
You can't calibrate it perfectly.
No two batteries are the same.
If the voltage suddenly drops below a certain level the phone shuts done, even if it is only at 8%.
It is possible that with repeated use the display will get more accurate.

[Q] one mini battery level suddenly drops to 0%

My one mini will drop to 0% when I am using apps like chrome or when I am gaming. There will be a 0% battery notification before shutting down. I also cannot turn on my phone after that. It will charge to 100% normally after that. Have tried battery calibration app and some online methods but they don't work. Weirdly, after I charge my phone to like 20% after the battery dropping to 0, it will discharge normally. It would not do that after it went above 30-50%. Before the incident, I have discharged it fully a few time after gaming. What should I do?
What ROM are you using? I had the same issue on Lollipop but never on KitKat.
Sounds like you've go the same problem as all of us here:
http://forum.xda-developers.com/htc-one-mini/help/device-off-45-battery-t2903544
Come join the discussion.

[Help] Battery Drain issue in One Plus One

Hello Experts,
My Battery is draining like crazy. I tried almost everything to figure out what is the issue but could not figure out. Below are the details I gathered from the things I tried.
My battery started draining almost 30 % overnight. Initially I thought it was due to the Unofficial Marshmallow Rom, I could see Wi-Fi to be cause of this drain. Hence I tried different Roms (Cyanogen Mod, PA, DarkObas, Sultan ROM, and stock Cyanogen OS ( Past 3 versions, including latest one). but the battery drain didn't stop.
So I decided to flash PA rom again, installed OpenGapps PICO (Only Google play service nothing else). I installed CPU spy and left it over night in Airplane mode. When I checked in the morning (after 7 hours) battery drain was of 25 %. This was surprising as nothing was running on my phone and only the minimum apps were installed. At this time, CPU spy showed no abnormal wake locks and was in Deep Sleep for almost 93% of the total time. The stock battery usage showed only Mobile Stand by and usage of 50 mAh.
Can you please help me figure out what is causing the battery drain.

Xperia Z2 battery

hi everyone, I hope this thread finds you in good health and joy... I am facing a problem specifically with battery callibration! it all started when I first installed cyanogen the battery life started decreasing slowly but I adapted to it (using cpu governet to downclock the processor) then it started going crazy and shutting down when it is about 70%(displays that it reached 0%), sometimes it doesnt even display 0% and reboots and gets stuck at a bootloop until I put the charger on! after 5 min of charging it goes back to 80% and boots normally!
I installed the existenz rom but still nothing changed,the services code shows that the battery's health is good!! I tried various apps to callibrate the battery and nothing worked, tried deep discharge/charge, also tried deleting the batterystats.bin file myself after reaching 100% but the only change is that it now shuts down when it reaches 88%
I have noticed something however, if the wifi was not on it stays fairly for a longer time but not enough for having a 3200 maH battery!
I will appreciate any help as this is really causing extreme discomfort in my daily life, thank you

Android Battery draining from 40% to 0% in 2 minutes

Hi..
-I am having this issue since a week. My android is Lava Pixel V1, runs on 6.0. Am using this phone since 2+ years. Never had this problem.
-Problem - The battery drains very fast, it drains 1% each in just 5 seconds. When it reaches 0% it will shutdown. But when I turn on the phone, it shows battery % as 40+. But again same happens. It drains to 0%, turns off, then i turn it on, it shows 40+.
-I flashed my phone so many times, rooted it so many times, changed roms so many times, but never got this issue.
-After this issue started, i thought maybe its because of some applications I installed in it. So i flashed it with custom rom. Didn't installed any apps, but battery drain still happening. Flashed with another rom, same thing happened.
-If i don't use phone, the battery % is stable. Like if it has 46%, and if i don't use phone even for 1 hour, the battery % remains same.
Any solutions BESIDES REPLACEMENT OF BATTERY are greatly appreciated.
Thanks & Regards...

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