Only for Honda US model
This upgrade enables high-speed charging (up to 20 amps) when used on a 240 volt outlet. When used on a standard household outlet (120 volts) unit charges at the original 12 amps (optional 120 volt adapter required). Unit is easily programmable to reduce the charging speed (amperage) if desired.
Requires a NEMA L6-30R 240 volt Outlet (or approved adapter) for high-speed charging.
You will typically see charge times of 3 to 5 hours.