[PascLeRasc]

USB 2.0 specifies a maximum of 20AWG wire width for power transmission, which would limit you to 1.5A for charging.

http://sdphca.ucsd.edu/lab_equip_manuals/usb_20.pdf

[habitue]

We're talking about usb-2.0 data over usb-c cable. It'll still have the power delivery of usb-c