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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. Find "Battery & power saving"
Slide your finger downwards starting from the top of the screen.
Press the settings icon.
Press Battery & power saving.
2. Extend the battery life
Press the indicator next to "Battery saver".
3. Return to the home screen
Press the Home key to return to the home screen.