: Reducing screen brightness, using Dark Mode on OLED screens, and managing background app refresh.
: Modern advice has shifted from "charge to 100%" to the 20/80 Rule (keeping charge between 20% and 80%) to preserve the chemical lifespan of lithium-ion batteries. Review of 21 Core Battery Hacks Display & Visuals (Highest Impact) 21 COOL BATTERY LIFE HACKS
: Manually closing all background apps can actually increase drain because the system uses more power to relaunch them from scratch. : Reducing screen brightness, using Dark Mode on
5 common battery-saving tricks that hardly save any battery life : Reducing screen brightness