1, first unlock Apple 1 1, open the system settings in ios 14.5, as shown below, and find the battery.
2. Click to enter the battery and find the battery health settings.
3, enter the battery health, check the maximum capacity, the longer the use time, the lower the energy efficiency.
4. Finally, in the opened page, start the battery optimization to protect the battery and slow down the battery aging, as shown below.