The loss of the battery under normal use, the health of the battery is less than 80%. Generally, after charging the iPhone for more than 500 times, that is, after using the iPhone for about 14- 18 months, the battery life will be reduced and the capacity will reach about 80%. It is recommended to change the battery. Because Apple takes 80% as the threshold, if it is lower than 80%, the system will forcibly turn on the performance management function, and the mobile phone will be stuck. It is recommended to replace the battery.
Maintenance:
1. When using the battery for the first time, we don't need to recharge it after using all the electricity in the battery, because when using lithium-ion batteries, we can charge it normally.
2. Set the low battery mode. When Apple's mobile phone is in a low battery state, it can be used to maintain the use of batteries. This mode will reduce the brightness of the mobile phone screen, optimize the performance of the device and better reduce the system animation.
3. Set and optimize the battery charging function. Find the battery in the phone settings, and then select battery health in the battery interface to see this function, which can delay the aging of the battery.