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The phoneX supports a maximum wired charging power of 15W, while the current fast charger provided by Apple has a maximum output power of 18W and 20W (USB-C chargers). Although you can charge faster with an 18W or 20W charger, it is not recommended to use these chargers beyond the official charging standard for a long time. Here's why:
1, too much heat: using a high-power charger to charge may cause the phone to heat up, especially in the case of low battery life will be more obvious. Working for a long time in a high temperature environment has an impact on aspects such as mobile phone battery life.
2, battery aging risk: Although modern smart phones generally have overcharge protection mechanisms, even so, in the case of long-term use of high-power wireless chargers, it may lead to accelerated battery loss, thereby shortening battery life.
3, the positioning accuracy is reduced: In addition, if the phone is using the GPS function to locate, the use of high-power charger charging will lead to reduced positioning accuracy.
1 18W fast charge is not recommended. The reason is that the power of the original charger of iPhone X is only 5W, and the use of 18W fast charge will cause problems such as overcharging and heating of the phone battery, which will shorten the service life of the battery.
3 If you need to use fast charge, it is recommended to use Apple's officially certified 18W USB-C power adapter, this charger will automatically adjust the power according to the phone's battery, to avoid overcharging the phone battery damage.
A: It is not recommended to use 18w fast charge because: 1. Using fast charge will reduce battery life.
Fast charging flow, fast charging, for the battery will cause negative heat accumulation, accelerate battery aging, thereby reducing its life. 2. In order to protect the battery, Apple has limited the use of 18w fast charge, if the use of 18W fast charge will not make the iPhone X get faster charging speed. So, even with the fast charge, the iPhone X still needs 1-2 hours of charging time. At the same time, if you often use the phone or need to use it for a long time, it is recommended to use a USB-A charger with lower charger power to charge, which can slow down the speed of battery life decline and extend the service life of the battery.
Regarding this issue, the iPhone X supports fast charging, but the official recommendation is not to use 18W fast charger, but to use 12W or lower power charger, for the following reasons:
1. Battery life: The use of high-power chargers, although it can be quickly charged, but will have an impact on the battery life, shorten the battery life.
2. Safety: The use of an inappropriate charger may lead to safety problems such as overheating and explosion of the battery.
3. Charging speed: Using an 18W charger does not make the iPhone X charge faster, because its maximum charging current is only 2.25A, while the output current of the 18W charger is as high as 3A, exceeding the maximum charging current limit of the iPhone X.
Therefore, in order to protect the battery life and security of the iPhone X, the official recommendation is to use a 12W or lower power charger for charging.
Because the iPhone X supports up to 5w fast charge, 18w fast charge cannot play the maximum power.