OnePlus Nord
Android 11.0
Select help topic
1. Find "Battery Saver"
Slide two fingers downwards starting from the top of the screen.
Press the settings icon.
Press Battery.
Press Battery Saver.
2. Extend the battery life
Press the required setting.
Press the indicator next to "Turn on now" to turn on the function.
3. Return to the home screen
Slide your finger upwards starting from the bottom of the screen to return to the home screen.