USB To Lightning VS USB C To Lightning Charging Speed | ZONSAN
In general, newer iPhones and iPads are capable of fast charging, which allows them to charge more quickly when using a compatible charger and cable. For example, the iPhone 12 is capable of fast charging at up to 20W using a USB-C-to-Lightning cable and a compatible charger.
If you are using a USB-to-Lightning cable with an older charger that is not capable of fast charging, the charging speed may be slower. Similarly, if you are using a USB-C-to-Lightning cable with an older device that is not capable of fast charging, the charging speed may also be slower.
It's important to use a charger and cable that are compatible with your device in order to get the fastest charging speed possible. You can check the manufacturer's website or the device's documentation to find out more about the charging speeds supported by your device.
