1. Find "Battery"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-ea1cc251-e06b-4366-b9c9-1dd43faee77b.png?width=218&height=452)
Press Battery.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-99c217e2-e992-4d2a-bfbc-d12f4429e87a.png?width=218&height=452)
2. Extend the battery life
Press the indicator next to the required setting to turn on the function.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-d5aa005d-432f-429c-b539-143bd10ce85f.png?width=218&height=452)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-1cfceace-ae4f-4714-87ac-022456725394.png?width=218&height=452)