So I finally received My N6P and one of the things I did was connect it to my USB power strip. Of the 3 A -> C cables I had, 2 gave me a "Charging Rapidly" while one did not. The one that did not was the six inch A->C cable that came with the phone.

The charger that came with the phone had a USB-C output, and came with a C->C cable and can do rapid charging.