Installed a 40amp circuit for the EVs after charging a PHEV for 5 years and a BEV truck for almost a year on a single 15amp circuit.
50ft x 8 AWG x 4 wires isn’t cheap ($1.32/ft with tax), plus conduit, straps, breaker, wet location boxes and outlet cover and the extra cost for an EV rated outlet.
Wasn’t room between the post and the garage door king stud for a flush mount box, oh well.
I’ll pay the electrician for a proper hard-wired charger when we upgrade service and run it from the main panel instead.
If you want to charge anything in under a day.
I’m in Europe, so we have 230 volts here (two times less amps needed for identical power), but… I charge my i-MIEV with 5.5 amps at night (the whole night) and it’s charged by the morning. Knowing that, I optimized my grid connection down to 3 x 6 amps (three phases, each up to 6 amps).
Of course, if I charge during daytime, I can draw power from the house inverter, so then I charge at 10…13 amps.