From the Home screen, swipe up to view your apps.
Tap Settings
Scroll to Battery and device care.
Tap Battery and device care.
Tap Battery.
Tap Battery usage.
From this screen, you can view details about how your battery power is being used.
Select an app to view more information.
Tap the Back icon.
Tap the Back icon again.
Tap Power saving mode.
Tap or slide the Power saving mode switch to ON.
You've completed the steps!
