Solved Battery Drain Problem after ONE UI 7

[Haazim]

All those who are experiencing the battery drain after the ONE UI 7 update, you just need to do a factory reset ( after backing up all your data ).

After every major OS update it is always advised to do a complete factory reset your phone. 

Hopefully, it will solve the problems.

[Istayhere]

Oh that One . I already did one time when I installed beta, it's the best option

[Haazim]

Yes it is easiest of all.

[Haazim]

You guys can give it a try. It worked for me at least.

[captain-cj]

Not worked in my case🥲

[SaswataChakraborty]

Whether the battery life will improve or not, that's another discussion but it's a good practice to reset the device after an Android version update to avoid weird glitches/bugs here and there arises due to the conflict of coding overlap.