1 Find "Battery"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-47aa0ad2-b922-4d6c-8646-0a4141ccbc58.png?width=208&height=426)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-fccf707e-0f5e-46ac-b3b5-3ae2cab37115.png?width=208&height=426)
Press Device maintenance.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-4fcd13ca-4f3e-494a-b8a6-a87b5cd074d3.png?width=208&height=426)
Press Battery.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-3cc8aae8-57d8-4973-b484-f9f53b70916a.png?width=208&height=426)
2 Extend the battery life
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-4bdbe88d-74f3-4685-9fac-500e23ad67e4.png?width=208&height=426)
Press APPLY to turn on the function.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-74003724-5bd4-4d6b-894a-23aa2d8a3186.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-a3d053ea-95a6-4607-8b34-7dd403729a54.png?width=208&height=426)