Apple's mobile phone battery capacity is 83% in two years.

Normal aging, consider replacing the battery. Under normal circumstances, Apple's mobile phone will be charged more than 500 times. After about 14- 18 months, the battery life will be reduced, so 83% of the battery capacity of Apple's mobile phone is a normal aging phenomenon within two years. Apple officially recommends that the iPhone battery should be replaced when the health is lower than 80%, because after the health is lower than 80%, the system will force the performance management function to be turned on, and the phone may be stuck in some cases. This problem needs to be completely solved by replacing the battery.