The battery of Apple's mobile phone is very fragile. If you don't use the original charger, it will easily lead to a rapid decline in the health of Apple's mobile phone battery, which means that the life of Apple's mobile phone battery will be reduced. At present, many mobile phone manufacturers are promoting fast charging, with 65 watts and 40 watts. It is said that you can talk for a long time after charging for five minutes. However, Apple has not changed much, just from five watts to eighteen watts. Therefore, some people will dislike the slow charging speed of Apple's original charger and choose a third-party charger, which is actually very easy to hurt the battery life of the mobile phone.
The principle of fast charging is actually to increase the charging current or voltage, so that the charge in lithium ion can quickly run from the positive electrode to the negative electrode. At this time, the surface of graphite cathode will be damaged to some extent because of the increase of current. And the temperature of the whole battery will rise rapidly because of the rise of voltage and current, which will eventually lead to the decrease of battery capacity.
Therefore, charging Apple's mobile phone with a third-party charger will lead to a rapid decline in the health of Apple's battery. Officials say that if the health of Apple's battery is below 70%, its battery life will be greatly reduced. Then at this time, Apple's mobile phone needs to be charged several times a day, and its endurance will get worse and worse.