iPhone Duo supports fast charging in both wired and wireless setups, but only with the right accessories. Here’s what Apple says you’ll need.
iPhone Duo offers fast charging, here’s what you’ll need
iPhone Duo can fast charge up to 50 percent battery in just 20 minutes. But you’ll need the right power adapter and cable to get top speeds.
Here’s Apple’s official guidance per this support document :
Wired Fast Charging
To fast charge iPhone Duo up to 50 percent battery in around 20 minutes, use the USB-C cable that came in the box and one of these adapters:
Apple 40W Dynamic Power Adapter with 60W Max ( currently only $34 )
A comparable third-party 60W-capable (or greater) adapter that uses Adjustable Voltage Supply (AVS) and supports USB Power Delivery (USB-PD) 3.2 ( my recommendation here )
Wireless Fast Charging
To wirelessly charge iPhone Duo up to 50 percent in around 30 minutes, use:
a MagSafe Charger ( currently only $30 )
a 35W or higher adapter ( compatible Apple adapter / compatible Anker…