1. Find "Battery"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-de2ee7ab-019a-4b33-ae6f-cffa68bae82a.png?width=212&height=376)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-d2b7bd71-9c67-47e3-8501-fc9c2211c00c.png?width=212&height=376)
Press Device maintenance.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6024ed99-371f-4b96-9f73-251b14d60e0d.png?width=212&height=376)
Press Battery.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-1dd2e865-9f3d-464a-a076-ea3596113cb1.png?width=212&height=376)
2. Extend the battery life
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a63425b3-4090-430c-978b-55e0db75712d.png?width=212&height=376)
Press APPLY to turn on the function.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-7fd4faa9-074d-47b0-98e6-96523c54c16a.png?width=212&height=376)
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-9be31506-c419-4916-8bf8-b5e5bd878d4c.png?width=212&height=376)