GTrusted
The Moto Z Droid phone comes with its own USB Type-C charger, but can it work with an external charger like the BatPower PD6's AC Adapter which supports USB Power Delivery over USB Type-C?
To see what happens when the BatPower PD6's AC Adapter charges the Moto Z Droid, we capture the USB Power Delivery Protocol transactions when the phone's battery is 56% charged.
When connecting the BatPower adapter to the phone over USB Type-C, make sure to attach the BatPower round to rectangle connector adapter and BatPower USB Type-C Adapter in between both devices. The BatPower PD6's AC Adapter starts off negotiation over USB Power Delivery by advertising 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). Note this is not compliant with the max 90W that the adapter has claimed to deliver.
The Moto Z Droid starts to requests 15 watts (5 volts @ 3 amps) and gets accepted by the BatPower adapter.
Later we see that the Moto Z Droid establishes 27 watts (9 volts @ 3 amps) power contract with the BatPower PD6's AC Adapter to speed up charging. This is one of the highest power levels that we've seen being requested by a phone using USB Power Delivery.
On a 56% charged battery, we can see that the Moto Z Droid starts off pulling around 18.4 watts (9.2 volts @ 2 amps) in the first 10 seconds. After that there is never a stable current in between 0.5 to 2 amps @ 9.2 volts being provided by the BatPower PD6's AC Adapter to the Moto Z Droid. Unfortunately, the BatPower adapter doesn't really seem to charge the Moto phone in a stable fashion over USB Power Delivery.
