1. Find "Battery"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-cd0b1fd4-ea35-48c2-8042-7d9b39da840c.png?width=210&height=454)
Press Battery.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-8839e96f-9b49-4840-a40c-7d0b3bcd11ff.png?width=210&height=454)
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-9df0add7-cdbd-4046-828a-bb45b8cb369d.png?width=210&height=454)
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-6a8ddb76-a69b-408a-8b2c-d154104f2674.png?width=210&height=454)