1. Find "Battery"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-f77a8e56-b2f6-4fb7-bd8a-668274854c25.png?width=204&height=446)
Press Battery.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-cb0ac1eb-addc-42be-8381-27406e1c35e1.png?width=204&height=446)
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-941f8d98-dc6b-404d-8cdd-071e29ccc66b.png?width=204&height=446)
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-ff1d51fd-4bad-4d23-85f2-6283ae83f47e.png?width=204&height=446)