Keep your device juiced up
Turn on battery saver mode to help your battery last longer.
1.Open your device's Settings app. Tap "Battery."
2.Tap the menu with three dots at the top right of your screen, then tap "Battery saver."
3.At the top of your screen, set the switch to 'on'. The top and bottom of your screen will turn orange when battery saver is turned on.
4.To turn on battery saver automatically when your battery is low, tap "Turn on automatically" and select "at 5% battery" or "at 15% battery."