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Some functions on your phone use a lot of power and therefore significantly reduce the battery life. You can reduce the power consumption by turning on low power mode.
1. Extend the battery life
Slide two fingers downwards starting from the top of the screen.
Slide your finger left starting from the right side of the screen.
Briefly press the battery icon.
Press the indicator next to "Battery Saver" to turn on the function.
2. Return to the home screen
Press the Home key to return to the home screen.