Take the iOS14.4 system of iPhone11 as an example, Apple 11 battery 99 how to restore 100, for a new original battery;
In fact, the battery of the iPhone11 shows 99, indicating a certain loss of the battery right, but not serious. It is a normal phenomenon that the iPhone battery is a rechargeable lithium battery, like other batteries, it will be lost due to normal use, generally a decline of 10 percent a year is normal, the owner of the building is normal, it is recommended to open the charging management protection battery in the setting.
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Mobile phone battery is a consumable, the life span is mainly affected by daily use habits, and fast charging will have a certain impact on the life of the battery, but this impact is reflected in the battery life is minimal, so it can be used normally without too much worry;
Good use habits can be developed in daily use, which helps to extend the service life of the battery, such as try not to charge in a high temperature environment, do not play with the mobile phone for a long time when charging, to avoid high charging temperature to the battery loss;
In addition, it is recommended to use Apple's original or MFI-certified fast charge cable, which has a built-in chip with over-voltage and over-current protection mechanism, which can effectively ensure battery safety.
Apple mobile phone battery 99 capacity can not be restored to 100, because the lithium battery is a kind of consumption, is a service life, to combine the use and charging frequency, if you want to battery durable mobile phone use the original charger, do not charge less than 20%, can not play while charging, do not let the phone in a high temperature or low temperature state, The phone can also be turned on to optimize battery charging or turn on low power mode to save power.
Battery health function shows that the maximum capacity of the mobile phone battery is 99%, indicating that the battery has begun to lose, can not return to 100% state, unless replaced with a new original battery, in the case of system adaptation, the maximum capacity of the battery will return to 100%.