A friend just helped me install a NEMA 6-20 outlet in our SE Arizona garage! Total cost was about $70 and a 12 pack of Guinness:
25ft of 12-2 wire
20 amp breaker
6-20 outlet
box and cover plate.
We're using this EVSC and a J1772 to Tesla adapter:
which was formerly plugged into a NEMA 5-20 outlet via it's included NEMA 5-15 to 6-20 adapter.
We're now charging at 16amps and 233 volts = 3.7kw.
25ft of 12-2 wire
20 amp breaker
6-20 outlet
box and cover plate.
We're using this EVSC and a J1772 to Tesla adapter:
which was formerly plugged into a NEMA 5-20 outlet via it's included NEMA 5-15 to 6-20 adapter.
We're now charging at 16amps and 233 volts = 3.7kw.