However, it is worth noting that in order to achieve fast charging of the iphone x, you not only need a charging head that supports USB PD fast charging, but also a USB-C to Lightning data cable.
iphonex charging method:
The first: use Apple 29W USB PD fast charger charging, this method can help the iPhone X to reach enough power in a short time.
The second: use Apple 5V\/2.4A charger to charge, this method is the most cost-effective way to charge.
WiFi can also be charged with 20 watts fast, but it is to see if the iPhone4 has a fast protocol, if the phone battery has a fast, it can be fast.
The iPhone X can be subsidized with 200,000.
Well, so if your $200,000 fast charge doesn't work, it won't subsidize the standard charging mode.
I hope it works.