![Apple iPhone 15](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-a654d9cc-596c-4fac-b8d7-edf9fdffcc9e.png?width=150&height=320)
Apple iPhone 15
iOS 17
1. Find "Battery Health & Charging"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-d816297e-2fb8-4301-898b-43f581324aa6.png?width=212&height=458)
Press Battery.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-ff1ea4d5-a0cb-4d51-83b9-20d336745439.png?width=212&height=458)
Press Battery Health & Charging.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-b9be9b34-baf7-4787-a061-efcef96b0a2f.png?width=212&height=458)
Press Charging Optimisation.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-3187cce2-f514-4898-b3b0-cac886926e8e.png?width=212&height=458)
2. Use optimised battery charging
Press Optimised Battery Charging to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-abb398f0-8b38-4fdc-b073-1f1c404b578e.png?width=212&height=458)
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-3187cce2-f514-4898-b3b0-cac886926e8e.png?width=212&height=458)