1. In daily use, it is best not to use the automatic shutdown of the Apple mobile phone, but to charge the mobile phone when the power of the mobile phone is used up to 20%-40%, and it can be unplugged when it is fully charged.
2. Early cell phones used NiCd and NiMH batteries, which required similar "activation."
These batteries will have a "memory effect," and when they are charged in an incompletely discharged state, it is easy to overcharge the battery. After a long time, the user will feel that the battery will be used quickly. Therefore, it needs to be fully charged for 12 hours for the first time. It's best to recharge when it's out of power.
3. The battery used in the iPhone is a lithium-ion battery. Its initialization process is done at the time of manufacture, so activation is not required to start using it. The lithium battery also has no memory effect and can be charged. Suppose the mobile phone is used to shut down automatically. In that case, the internal voltage of the lithium battery will be too low due to excessive discharge, and it may not be possible to turn on and charge the battery. Therefore, the charging of lithium batteries pays attention to "eat less and eat more," and frequent shallow charging and discharging will help prolong its life.
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