1. Find "Battery Health"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a7b6471b-8a86-412f-ac2b-e9ea9cd109a5.png?width=210&height=454)
Press Battery.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-e8ebb2ef-9482-4fc5-94f2-7039ce2dd5f2.png?width=210&height=454)
Press Battery Health.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6f99e6cb-c270-4ea9-addf-0afd69989153.png?width=210&height=454)
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-8088e64f-c8f5-4e56-acec-de176a1e8c69.png?width=210&height=454)
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-8088e64f-c8f5-4e56-acec-de176a1e8c69.png?width=210&height=454)