1, Battery Health: In an iOS device, battery life can be checked by battery health. The maximum capacity and current capacity of the battery will be displayed here, as well as whether the battery needs to be replaced. If the battery health is lower than 80%, it is recommended to replace the battery.
2. Battery usage: In iOS devices, you can check the battery usage through the battery usage. The battery usage in the past 24 hours and 10 days will be displayed here, including usage time, standby time, application usage, etc.
3. Charging times: The battery life is related to the charging times, and the battery life can be evaluated by looking at the charging times. In the iOS device, you can check the charging times in "Battery Usage Record" under "Battery Health"-"Maximum Battery Capacity".