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How You Can Use the Energear 65W PD Charger to Power the Apple 15-Inch MacBook Pro (Late 2016) Quickly Over USB Power Delivery

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The Energear 65W PD Charger supports USB Power Delivery fast charging technology over its USB Type-C connector which you can use as alternative power supply for certain Thunderbolt 3 enabled notebook PC's like the Apple 15" MacBook Pro (Late 2016). To see how the Mac draws power from this  USB certified Energear charger, let's go through the USB Power Delivery protocol basis generated by the Granite River Labs GRL-USB-PD-A1 test  analyzer.

Here we connect a USB Type-C to Type-C cable between the Energear 65W PD Charger and the Apple 15" MacBook Pro (Late 2016) when the Mac is 30% charged. Over USB Power Delivery negotiations, we can see after the first few Vendor Defined Messages that Energear begins to show off these power capabilities: 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 65 watts (20 volts @ 3.25 amps). 

Instead of the max 4.4 amps current that the Apple 15" MacBook Pro (Late 2016) is able to draw as indicated, here it requests to pull only 3.25 amps @ 20 volts to charge at the highest 65 watts being offered by Energear which then accepts.

The Mac again can be seen to follow up with another same power request of 65 watts (20 volts @ 3.25 amps) to also get accepted by the Energear 65W PD Charger

When the Apple 15" MacBook Pro (Late 2016) is on at 30% full battery upon plugin, it starts off pulling a quick current spike during its first power request, starting at around 20.2 volts. Over subsequent power transactions, the current steps up while the voltage decreases slightly to eventually stabilize charging at about 66.3 watts (20.1 volts @ 3.3 amps).   

It's good to see the Apple 15" MacBook Pro (Late 2016) is able to charge just as well with the non Apple based Energear 65W PD Charger as its own provided Apple 87W USB-C Power Adapter (in this review) using USB Power Delivery. 

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