The battery needs to be replaced. Because Apple's mobile phone usually takes two years, the remaining 80% of the "battery life" is normal use. Below 80%, not only the storage capacity of the mobile phone battery is greatly reduced (that is, the use time is reduced after the battery is fully charged), but also the peak value of the battery is reduced and unstable, which will lead to the jamming of the Apple mobile phone and affect the experience. Battery health means that with the long-term use of the iPhone, the maximum capacity of the battery will gradually decrease, which is the case in all mobile phone batteries, but it is more obvious in Apple mobile phones.
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Precautions for the use of Apple battery:
1, the mobile phone battery can't be used after being turned off, which will seriously consume the battery life;
2. When the mobile phone sleeps, close the application running in the background;
3. Use the original data cable and charger to charge;
4. Don't always charge the Apple mobile phone after it is fully charged. Some fruit powders like to charge their mobile phones until the next morning when they sleep at night, which is very bad;
5. Do not charge when the voltage is unstable, and do not charge with the USB of the computer;