1. Find "Battery"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-e4104666-cfae-4a73-852a-06f55f906bfc.png?width=206&height=368)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-cb28a6d2-03ab-4122-b037-9688c51ef7c0.png?width=206&height=368)
Press Device maintenance.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-deb74a82-4e9c-4dbe-b6e2-d11c05e701a3.png?width=206&height=368)
Press Battery.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-2116fc5c-6ad2-4a30-8aa6-a8974c62693d.png?width=206&height=368)
2. Extend the battery life
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a93ccf26-6eb3-466c-8abf-8fe5b1141dc3.png?width=206&height=368)
Press APPLY to turn on the function.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-117a549f-5c77-4644-a0e3-e2e37dcb8c31.png?width=206&height=368)
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-51809d66-3c25-4e08-8c40-5e836b86e47f.png?width=206&height=368)