Apple battery rose from 88 to 92.

The failure of the iPhone battery is that the health is less than 80%, and the maintenance status will be displayed. CPU will reduce the frequency to reduce power consumption, which is the problem of frequency reduction. In actual use, it will reduce the running performance. The recommended replacement line is 85%. In practical application, it is normal to reduce it to about 85-90 a year. As for how fast before, it doesn't matter. What is important is the last maintenance and replacement and fault display.