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Using only the portable battery portion of the RAVPower Xtreme 26800mAh Portable Charger with Type C Port + 30W Type-C AC Charger by RAVPower, we will see how well it charges the Touch Bar Version of the Apple 13" MacBook Pro (Late 2016) using USB Power Delivery.

The RAVPower Xtreme 26800mAh Portable Charger with Type C Port + 30W Type-C AC Charger battery starts communicating over USB Power Delivery by advertising only a single 15 watts (5 volts @ 3 amps) power profile to the Mac. The charger battery then accepts the Mac's request to draw 15 watts (5 volts @ 3 amps).

The charger battery later declares not only the 15 watts (5 volts @ 3 amps) it initially offered but also four other power profiles: 27 watts (9 volts @ 3 amps), 28.8 watts (12 volts @ 2.4 amps), 31.5 watts (15 volts @ 2.1 amps), and 30 watts (20 volts @ 1.5 amps). The Touch Bar Version of the Apple 13" MacBook Pro (Late 2016) proceeds to request 31.5 watts (15 volts @ 2.1 amps) from the battery which it accepts.

The Macbook further requests to obtain Sink Capabilities from the charger battery which it complies.

While the Mac's battery already being well charged, we can see that the current charges to around 2 amps at 15 volts in the first 10 seconds. As the Mac's battery gets closer to being full, the current steadily drops down to around 1.5 amps.

It's great to see that a non Apple based charging device like the RAVPower Xtreme 26800mAh Portable Charger with Type C Port + 30W Type-C AC Charger's portable battery can also charge the Touch Bar Version of the Apple 13" MacBook Pro (Late 2016) using USB Power Delivery.