1) Many smartphones overheat due to lots of apps running in background and this overheating leads to reduced battery life. 360 security app gives a feature called autostart manager which restricts apps from automatically starting in background. Use that feature to reduce overheat, increase battery, and increase performance. 2) Drain battery to 0% and allow phone get automatically switched off Let phone remain switched off for few hours. This increases battery standby time. Easy way to do this is by putting some movie to download on phone and sleep :-) Don't laugh it will work. 3) Don't overcharge. Remove charger from phone when you start feeling dizzy or sleepy. Or Charge with Power bank like Mi power bank Which automatically stops to charge when battery reaches 100% of phone 4) disable many pre installed apps which u find useless for u. For example - When u already have music player, why to use Google play music app. Go to Settings - >application manager /app -> all-> click on apps and either uninstall or disable.