After installing the iTools software, please connect the iPhone to the computer with a data cable.
Open the iTools software and wait for the iPhone device to be recognized. Click the "Battery" icon in the window, as shown.
Then you can see the detailed report of the current mobile phone battery information, which is explained here:
Battery charging record: the number of times here is the number of times the current mobile phone battery is fully charged;
Design capacity: refers to the battery capacity of mobile phone factory standard battery;
Actual capacity: refers to the actual capacity of the current mobile phone battery;
When you have such a mobile phone battery information, if you find that the mobile phone battery is particularly durable, check the current actual capacity. If the actual capacity of the battery is too small, for example, only a few hundred mAh, then the battery is definitely not durable.