The BatPower PD6 was launched to support charging for various products like the HTC 10 phone which is enabled with USB Power Delivery technology for fast charging. Here we see how well this power bank works with the phone when connected over the USB Type-C interface.
You will need to first attach the BatPower PD6 to the BatPower USB Type-C Adapter before connecting to the HTC 10 using a USB Type-C to Type-C cable. We can then see that the BatPower PD6 initiates USB Power Delivery negotiations over a repeated display of 15 watts (5 volts @ 3 amps), 27 watts (9 volts @ 3 amps), 36 watts (12 volts @ 3 amps), 45 watts (15 volts @ 3 amps) and 60 watts (20 volts @ 3 amps) source capabilities. Note this contradicts with the max 90W output promised by the BatPower PD6 on its cover.
We confirm that the HTC 10 is pulling 5 volts from the BatPower PD6 with the current bouncing around between 2.5 amps to 3 amps (when the phone's battery is 19% full). The BatPower PD6 is able to charge the HTC 10 at almost the same power as seen with the power bank's own AC Adapter.