![Apple iPhone SE](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-8dbcf4b4-f1e0-4e2e-a894-1ff49954d396.png?width=150&height=320)
Apple iPhone SE
iOS 15.0
1. Find "Battery Health"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-3912f2e4-5776-4628-97d2-058a176337bd.png?width=192&height=340)
Press Battery.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-e8d6ea50-a184-4565-9764-2ef2698bfa43.png?width=192&height=340)
Press Battery Health.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-ac19bac3-2365-49e8-a5b7-f6234dac4f53.png?width=192&height=340)
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/7151223-f-9fcedb83-2ddb-4b6b-965a-bbb042ff296c.png?width=192&height=340)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-9fcedb83-2ddb-4b6b-965a-bbb042ff296c.png?width=192&height=340)