1. Find "Battery"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-8a659b78-ec94-4757-baf0-0c9a92312e5c.png?width=202&height=418)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-aa45eaf9-c8c6-4bf7-9dc1-893c103af5ea.png?width=202&height=418)
Press Device maintenance.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-d7a16ed1-1ddc-4eed-abff-fb76fd69b435.png?width=202&height=418)
Press Battery.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-97fa67eb-2aac-42e8-82e6-11e270438587.png?width=202&height=418)
2. Extend the battery life
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a9b05f85-43b7-448f-b82e-41837cd9ba37.png?width=202&height=418)
Press APPLY to turn on the function.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-1fa8d887-bb81-43cd-b486-dfd91f013648.png?width=202&height=418)
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-304228eb-af89-46c8-95a1-771fc854cd7b.png?width=202&height=418)