Yes true. The most powerful house outlet is NEMA 14-50 eg 240V/50AMP. It is of course better if the car can do 40amp charging on it.I meant to say 3.6 kW charger, not 3.6 amp. I'm not an engineer, but I understand that the onboard charger is the limitation for charging speed with a L2 AC charger. Is that not right?