Judge whether the mobile phone needs to change the battery.
1. First charge the phone to 100%, then quit all programs in the background, and then set the phone to flight mode. After 7 or 8 hours, observe the battery bar of the mobile phone. If the power exceeds 10%, you need to replace your mobile phone.
2. The option of battery health has been added in iOS 12, which is convenient for users to judge the battery life, and can be seen in Settings-Battery-Battery Health. When the battery is lower than 80%, the mobile phone will prompt that it is not in the best performance and it is time to change the battery.
Extended data:
Precautions for battery replacement:
1. Improper disassembly of mobile phone battery causes combustion and explosion.
The user has not been trained, and the battery of the mobile phone is fixed with super glue, so it is easy to squeeze and collide with the battery when disassembling. Unskilled operation technology is likely to bring all kinds of risks to yourself.
2. I don't know how to restore my mobile phone without special guidance.
It is true that some people removed the mobile phone and replaced it with a new one through some tutorials, but they were dumbfounded when they restored the mobile phone. Obviously, they disassembled so many parts, but they just couldn't assemble them. In order to avoid this risk, it is best to take photos and record the original position of the parts during disassembly, so that it will not be so troublesome.