Tools/materials: iphone 1 1, iOS 14.4, setting 1.4.
1. Open the settings of Apple's mobile phone and click the battery option.
2. Choose battery health.
3. Enter the battery health page and check the battery health on the right side of the maximum capacity.
Battery health protection measures
It is recommended to use the original Apple accessories that come with your mobile phone. However, since Apple has stopped equipping the iPhone with chargers, you need to buy one separately. You can get Apple's official charging adapter, or choose an MFI-certified iPhone charger or a wall adapter. Unauthorized after-sales charger or data cable may damage the battery of iPhone.
Avoid placing iPhone in extremely hot environment. You can do this by not putting your iPhone on the dashboard when you are driving in the sun. When you are in the sun, try not to perform demanding tasks, such as games. The heat from the sun, the extra heat generated by the CPU and the maximum brightness screen will damage the battery.