How does Apple change the battery to show its health?

1. According to Apple official website's query, first open Apple's mobile phone and click on the battery in the settings menu.

2. Secondly, enter the page and select Battery Health.

3. Finally, after entering the battery health page, you can see the maximum capacity option. The percentage displayed behind this option represents the health of the battery, and a lower percentage means that the health of the battery is reduced and the power consumption is faster.