Explain that this battery is not the official original battery, just change it.
If there is no problem that the mobile phone cannot be charged and consumes too much power, then you don't need to replace the battery of the mobile phone and you can continue to use it. However, if the maximum capacity and peak performance of the battery are not detected, it means that the battery may have the possibility of frequency reduction. Before 20 18, 12 and 3 1, it only takes 2 18 yuan to replace the old official battery, which is not much different from the third-party battery. You may wish to consider carefully and spend more time replacing the official battery.
Apple also made it clear that "if the aging battery is replaced with a new battery and used under normal circumstances, the iPhone will return to normal performance". So for ordinary users, when you find the words "iPhone battery may need to be repaired" under the battery option, you can get a smooth iPhone by changing a battery.