1. Find "Battery Health"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-91449b73-db9c-46aa-849a-e9d797bc91d1.png?width=210&height=456)
Press Battery.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-83266ed9-4108-4da3-8cca-fd24d3e2e7ce.png?width=210&height=456)
Press Battery Health.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-b041437f-8bca-42a6-bdb6-e29234143999.png?width=210&height=456)
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-260d5cde-cdcd-496d-8ffb-793c691115cb.png?width=210&height=456)
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-260d5cde-cdcd-496d-8ffb-793c691115cb.png?width=210&height=456)