1. Find "Battery Health"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-9e961350-67cc-44ff-ba91-3a8a00a20e09.png?width=208&height=454)
Press Battery.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a08eee31-89e7-4c58-842a-eb7cee6ab36c.png?width=208&height=454)
Press Battery Health.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-839a5026-5349-48c6-b827-c6040d8810c8.png?width=208&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-cedb9a43-45fc-45f4-bbe0-1d9cc33521d5.png?width=208&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-cedb9a43-45fc-45f4-bbe0-1d9cc33521d5.png?width=208&height=454)