1. Find "Battery Health"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-fa42d916-705a-41f6-b80e-dd5e80c2db77.png?width=206&height=448)
Press Battery.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-02585eb8-25ae-4da4-9025-9a2875b0170c.png?width=206&height=448)
Press Battery Health.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-2668dedd-033f-4f2c-9b22-0320ddfafcac.png?width=206&height=448)
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-d1db8d4f-bd24-41d3-bc83-5e5742870665.png?width=206&height=448)
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-d1db8d4f-bd24-41d3-bc83-5e5742870665.png?width=206&height=448)