1. Find "Battery"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-575a1223-a6b7-48ab-9a4b-21189040fd4a.png?width=200&height=432)
Press Battery.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6209cf7a-eae0-4dbc-ac7e-cc4b881d2d14.png?width=200&height=432)
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-a3ef78a0-18b7-4e16-97f1-e7b85e97aa9f.png?width=200&height=432)
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-db728ada-ec7d-49d9-bb8f-1b0ff84cbdc7.png?width=200&height=432)