I have seen battery drain overnight in S21 even if you have restricted everything still 10-15% battery drains in 8 hours. When checked in Battery & Device care it shows
Google Play Store : 0.7%
one UI: 0.2%
This total is around 1% then where remaining battery goes ?
This is really weird, is there a way to find out what else is draining battery taking 14% battery overnight?
Also i kept phone in Safe Mode overnight just to be sure no hidden third party app drains battery but result is still the same 12% battery drain.
I have been pixel and iphone user in past but never seen more than 5% battery drain overnight. Is battery used is cheap quality or poor wiring.
Any one else facing it ?
Solved! Go to Solution.
I also tried Bixby routine to switch to power saving mode and the battery drain was still 12% in 8 hours overnight as most of my apps are already deep sleeping so power saving didn't made any difference.
Also do not disturb was on during this time and location i turn off always.
The main difference was Airplane Mode. I turned it on and Battery drain was 2% in 8 hours.
So its kind of switch off phone when not in use. Samsung should learn something from Apple how to optimize battery for basic phone features like Network cell standby.
Tried already. Seems there is no software issues. Could be Samsung puts cheaper hardware compared to iphones which are not able to handle network cell reception and puts load on battery.