1. Find "Battery Health"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6941ab6a-5ce1-4bc2-85e1-c9bab3ea7590.png?width=200&height=354)
Press Battery.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-fb95643f-a856-4d03-8e98-e9d2416324fe.png?width=200&height=354)
Press Battery Health.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-7691a68d-175e-4eaa-9318-a2298d910898.png?width=200&height=354)
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-aab18f2b-e760-447f-9426-574b25480b3a.png?width=200&height=354)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-aab18f2b-e760-447f-9426-574b25480b3a.png?width=200&height=354)