1 Find "Battery"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-01d5fbfe-5fa8-4abd-97e8-493b2f31eade.png?width=198&height=410)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-40a752dd-9cf6-4172-9c0b-127812b71f66.png?width=198&height=410)
Press Device maintenance.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-9065f85a-1ff8-4b61-be30-4f95813dc8bf.png?width=198&height=410)
Press Battery.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-39131fe8-ffa5-4380-87c1-404d540f5ec6.png?width=198&height=410)
2 Extend the battery life
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-534782f3-002c-47b5-955f-00bb99d5df75.png?width=198&height=410)
Press APPLY to turn on the function.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-95ee577e-18de-4164-b97b-2542452f76c3.png?width=198&height=410)
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-b0dd9d5e-be22-426d-86f9-c07ad42c4ee6.png?width=198&height=410)