![Apple iPhone X](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-95117ac0-ced4-47fc-b9ba-99cc89ad9582.png?width=150&height=320)
Apple iPhone X
iOS 16.0
1. Find "Battery Health"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-364d27fb-2246-43bd-b253-dc49279a7b24.png?width=208&height=454)
Press Battery.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-a08eee31-89e7-4c58-842a-eb7cee6ab36c.png?width=208&height=454)
Press Battery Health.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-adb4b022-2042-4e2f-b94b-7648393f80e8.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/7151223-f-acc0cc4e-9849-4513-8486-72bf2c083a4d.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/7151223-f-acc0cc4e-9849-4513-8486-72bf2c083a4d.png?width=208&height=454)