It stands to reason that the charging times of a battery from brand-new to exhausted life are limited. From 100% to 80%, during this period, the battery can complete about 1000 full charge cycles, which means that the maximum capacity of the battery will be reduced by 1% every 50 full charge cycles. From this point of view, a loss of 3% for two months is normal and acceptable.
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IPhone battery maintenance:
1. The rechargeable iPhone battery has one feature: no memory effect. Therefore, when using a new battery, there is no need to charge, overcharge or trickle over the charging time for a long time. It's best to charge it while using it, and charge it if you want.
2. It is recommended that the iPhone that does not support fast charging only use 5V 1A charger. After charging for 2 years, the mobile phone will charge quickly, but the consequence is that the mobile phone will heat up inexplicably, the power can't be used, and the health will drop sharply. The problem is that it will cause irreversible damage to the battery and the battery life will be greatly reduced.
3. Use Apple's official charger and data cable to charge. The quality assurance of third-party chargers is far less than that of Apple's official chargers. Chargers that are not suitable for iPhone, such as other manufacturers: Samsung, VIVO, Huawei, etc. , incompatible, and the data of iPhone adapter charger is: 5V,1a.