Samarth97 I don’t really have a method,but I do use battery optimization, I turn off Bluetooth and WiFi if I don’t need to use it as I have a very good 5g in my area, and I try not to let the battery go to zero if I can help it. I usually just charge when it gets to say 20% and leave it .I think I’m just one of the lucky ones with a good device. I have had my display on 120 Hz since the day I got the phone and I get a day and a half battery at least with moderate use . But I don’t really game though