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Samsung Galaxy S10e
Android 9.0
1 Find "Battery"
Slide your finger downwards starting from the top of the screen.
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Press the settings icon.
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Press Device care.
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Press Battery.
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2 Extend the battery life
Press Power mode.
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Press the required setting to turn on the function.
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3 Return to the home screen
Press the Home key to return to the home screen.
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