I have a nema 14-50 I charge at 40amps every night that works great. problem is I still have a 100amp main panel. I have always been concerned about running the A/C while charging not wanting to trip any breakers and what not. During these hot days when I need A/C all night I could just lower the charge rate in the car to 20amps and obviously it would take twice as long to charge but would be no where near overload the panel. Or is since its still a 50amp breaker Its still 50amps on the panel?