Enable Optimized Battery Charging
Avoid extreme temperatures
Keep iPhone between 20% and 80% when possible
Use Apple-certified chargers and cables
Avoid overnight charging when unnecessary
Reduce screen brightness
Use Auto-Brightness
Enable Low Power Mode when needed
Turn off Background App Refresh for unused apps
Limit location services for unnecessary apps
Reduce push email frequency
Close battery-draining apps when not in use
Keep iOS updated
Avoid fast charging all the time
Remove thick cases during charging if the phone gets hot
Store the iPhone at around 50% charge if unused for long periods
Minimize gaming and heavy tasks while charging
Disable unnecessary notifications
Use Wi-Fi instead of cellular when possible
Check Battery Health settings regularly