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We look at how the BatPower PD6 Power Bank can support the Samsung Galaxy S8 phone using USB Power Delivery over the USB Type-C interface. We also see if the Samsung phone can perform better with the BatPower PD6 over its own AC Adapter as reviewed here.

To connect the Samsung Galaxy S8 with the BatPower PD6, you will need to also attach the BatPower USB Type-C Adapter in between. Initially, we see from the USB Power Delivery negotiations that the BatPower PD6 is advertising its power 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). These profiles can't achieve the max 90W output that the power bank has claimed to offer.

With just 10% battery charge remaining, the Samsung Galaxy S8 requests to charge using 15 watts (5 volts @ 3 amps) which the BatPower PD6  accepts.

Starting from a 10% full battery and while the phone is on, the Samsung Galaxy S8 can be seen to charge at only about 5 watts (5 volts @ 1 amps) although it starts off briefly drawing around 15 watts (5 volts @ 3 amps) in the beginning. Note that 5 watts is the power that the Samsung Galaxy S8 draws when it is on- when the phone is off, it draws more power.