I had my old samsung note 20 which i started to use again after some issue in my current device.I installed all the recent updates on my phone and after a brief usage i found out that my phone only lasts somewhere around 7-8 hours for a full charge,...
The phone generally is never idle state other than night time ,and during the night time the battery only gets a few percentages down.Also mentioning Regarding battery performance i read somewhere to clear cache ,but im not able to enter boot menu,