1. Find "Battery"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-663541c1-679f-4e7d-8afc-bc1cc46f4e03.png?width=204&height=418)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-368c6482-171a-4564-a97a-6b7a5d3311cc.png?width=204&height=418)
Press Device maintenance.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6c090f5c-00a2-4170-824c-34d4453a4324.png?width=204&height=418)
Press Battery.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-28c869e3-2ecc-48d9-879c-1588466e677b.png?width=204&height=418)
2. Extend the battery life
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-8c0a7b5f-4852-427b-bb30-ad25aeb10b11.png?width=204&height=418)
Press APPLY to turn on the function.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-2a3de440-97e7-4518-ad23-6f97dc459740.png?width=204&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-778c5744-1c13-4264-aaaa-d0de2b91b70b.png?width=204&height=418)