GTrusted

The Huawei P9 comes equipped with a USB Type-C connector that doesn't support quick charging over USB Power Delivery. Let's see how the phone charges with a USB Power Delivery enabled charger like the BatPower PD6 Power Bank over the USB Type-C port even though no USB Power Delivery contract is established.

After connecting the BatPower PD6 to the Huawei P9 through the BatPower USB Type-C Adapter, the BatPower PD6 can be seen to repeatedly display over USB Power Delivery its source capabilities 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). The BatPower PD6 unfortunately doesn't appear to support 90W as declared on its casing. 

While the BatPower PD6 charges the Huawei P9 with the phone's battery being fully drained, we can see that the phone starts pulling around 2.6 watts (5.1 volts @ 0.5 amps) and later around 10.2 watts (5.1 volts @ 2 amps) even though the phone doesn't respond to the BatPower PD6's constant  advertising of its USB Power Delivery power profiles. This is also similar to what we've observed when using the BatPower PD6's AC Adapter in this review.

While no USB Power Delivery contract is completed, the BatPower PD6 can still charge USB Type-C phones like the Huawei P9, and charges at the maximum 10 watts power that the phone can draw.