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You Need 5W or Higher USB-C PD Adapter to Fast Charge Apple Watch 7

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Apple has today published a new support document about fast charging on the latest Apple Watch Series 7, according to which any USB-C adapter rated at 5 watts or higher will allow for fast charging as long as it supports the USB Power Delivery (USB-PD) protocol (via MacRumors).

20w adapter tech spec update

The fast-charging capability requires a new USB-C charging cable that Apple includes in the box with the watch. Apple’s document also mentions that any of the company’s own USB-C power adapters rated at 18 watts or higher will support fast charging when using the included cable.

“Fast charging requires an Apple USB-C Magnetic Fast Charging Cable. This cable has aluminum around the magnetic charger and a USB-C connector,” notes Apple.

You also need one of these power adapters:

  • Apple 18W, 20W, 29W, 30W, 61W, 87W, or 96W USB-C Power Adapter
  • A comparable third-party USB-C power adapter that supports USB Power Delivery (USB-PD) of 5W or greater

If you’re not sure which Apple Power Adapter you have, check the wattage on the top or bottom of the adapter.

Apple also mentions that fast charging is currently not available in Argentina, India, or Vietnam.

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