1. Find "Battery Health"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-bf7bf188-c86a-43c6-a970-90a1c097d1b4.png?width=208&height=454)
Press Battery.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-9056d403-fdf6-4f59-8443-4a054b104a55.png?width=208&height=454)
Press Battery Health.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-226ac566-6a7b-4c94-995c-f4ee10fa1e0f.png?width=208&height=454)
2. Turn optimised battery charging on or off
Press the indicator next to "Optimised Battery Charging" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-c7a323a3-7eaa-45e4-8038-561664b1fc36.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-c7a323a3-7eaa-45e4-8038-561664b1fc36.png?width=208&height=454)