1. Find "Battery"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-f2d36dc6-85ee-4b90-a879-5f8640901ab7.png?width=208&height=426)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-b8de8bfe-605f-4268-a984-b8e30031af21.png?width=208&height=426)
Press Device maintenance.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-3129c1b7-66da-4778-977e-2b6e112be0fe.png?width=208&height=426)
Press Battery.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-4750f5c0-aab1-48b0-a72e-21cba68f99d8.png?width=208&height=426)
2. Extend the battery life
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-5a9e5a8b-387c-4499-b0f5-925cfdbc3775.png?width=208&height=426)
Press APPLY to turn on the function.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-c4529b2b-72ae-4808-882c-d33afdfe893a.png?width=208&height=426)
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-2dcb5f5a-b9a9-4e19-8e49-5e34fd3f4fbc.png?width=208&height=426)