Brian, the C19 connector supplied supports up to 20A and can also do 2500W with L2 charging at 240V. The (included) NEMA 5-15R pigtail is connected as an adapter to the C19, but both L1 and L2 charging options are available.
Per Electric Terry: "At Hollywood Electrics, they take each charger, and put two new ends on it, an Anderson connector and extension to fit the Zero motorcycle and a higher current connector, instead of the C13 connector, they install a higher amp C19 connector and give you the matching end on the J1772 side. Then they also have each one programmed for the specific charging algorithm of the Zero, and fine tune and test it. "
Hollywood Electrics has been fantastic every time I've talked to them, I'd be happy to buy stuff from them in the future. Sad to let this one go.
-Chris