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Fast charge wattage

How many watts can it use to fast charge? 5? 18? More?

Apple Watch Series 7

Posted on Jul 5, 2022 12:24 PM

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Question marked as Top-ranking reply

Posted on Jul 6, 2022 12:54 PM

You can find all you need to know about Apple Watch Series 7 fast charging on the link below.

About fast charge on Apple Watch Series 7 - Apple Support


6 replies

Jul 6, 2022 1:17 PM in response to SimoRaga

Thanks. That page includes the following confusing information: “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“


My reading of that is that you can get full speed fast charge with a 5W PD charger. Does that sound accurate to you?

Jul 5, 2022 5:36 PM in response to MarcusNewman

Apple specifies a 20watt charger for Apple Watch Series 7 Fast Charging.


However, it will charge faster with any charger greater than the previous 12watt chargers.


The Apple Watch Series 7 will ONLY use as much power as it wants, so even if you use a charger greater than 20watts, the Series 7 will only use at most 20watts and ignore the rest of the capabilities of a larger charger.

Jul 6, 2022 3:46 PM in response to MarcusNewman

Yes, because power delivery is a standard for fast charge that can be adopted also by other companies for example Samsung products can also support PD.

But in the link it says that is necessary a third-party power adapter that supports usb power delivery, and in that case you can also use a 5W one.

But if you want to use an Apple one you have to buy one these: Apple 18W, 20W, 29W, 30W, 61W, 87W, or 96W USB-C Power Adapter

And for fast charge you also need the Apple cable that is on the link that I sent before.

Fast charge wattage

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