1. Find "Battery"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-7a428a29-fe77-4d46-836f-e99ea90a9b4c.png?width=212&height=434)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6dbb3faa-39b9-4f4d-bb5a-492946c5c383.png?width=212&height=434)
Press Device maintenance.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-685fae83-e080-450a-bd6e-68171ffd0d53.png?width=212&height=434)
Press Battery.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-aadc55fe-36b3-4962-a727-b4408e07c97e.png?width=212&height=434)
2. Extend the battery life
Press the required setting.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6da4dd32-772c-4735-860c-a5bece03e730.png?width=212&height=434)
Press APPLY to turn on the function.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-383f76f0-ebb6-4cb3-9eb9-8281f1f9c53f.png?width=212&height=434)
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-b19df7da-98e0-4b1d-a8da-ec2a72ade646.png?width=212&height=434)