Turn on Low Power Mode
Lower screen brightness
Enable Auto-Brightness
Set Auto-Lock to a shorter time
Turn off Background App Refresh
Close apps you are not using
Disable Location Services for unnecessary apps
Turn off Bluetooth when not needed
Turn off Wi-Fi when not in use
Turn off AirDrop when not needed
Use Wi-Fi instead of cellular data when possible
Enable Reduce Motion
Disable push email and fetch less often
Turn off unnecessary notifications
Use Dark Mode in supported apps
Keep iOS updated
Check Battery Health in Settings
Remove or limit battery-draining apps
Avoid extreme temperatures
Reduce screen time and video streaming quality
Restart the iPhone occasionally