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The GoPro Supercharger (click here for Amazon pricing) and Apple iPad Pro both support charging over USB Power Delivery so let's see how well they work when connected together.

The GoPro Supercharger initiates USB Power Delivery negotiation with the Apple iPad Pro by declaring mulitple times its source capabilities of 15 watts (5 volts @ 3 amps), 16.5 watts (5.5 volts @ 3 amps), and 20 watts (12 volts @ 1.67 amps).

The Apple iPad Pro eventually then requests to draw 12 watts (5 volts @ 2.4 amps) from the charger which it accepts.

While the Apple iPad Pro is being charged on an already well charged battery, we can confirm that the power drawn is initially 5 volts @ 2.4 amps but the current drawn steadily drops as the battery becomes fully charged.

We can confirm that the GoPro Supercharger works well with the Apple iPad Pro using USB Power Delivery.