1. Find "Battery Health"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-cbfa806f-0ea7-4b29-83e0-5b4ec110df0d.png?width=210&height=458)
Press Battery.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-340afa0d-19f3-4a68-8386-0cc47d062b9b.png?width=210&height=458)
Press Battery Health.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-31d0c100-aa7f-4147-8df5-0e7b1c92eb8b.png?width=210&height=458)
2. Use optimised battery charging
Press the indicator next to "Optimised Battery Charging" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-b9797816-b4e1-4160-9949-0862535b29c7.png?width=210&height=458)
3. Return to the home screen
Slide your finger upwards starting from the bottom of the screen to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-b9797816-b4e1-4160-9949-0862535b29c7.png?width=210&height=458)