as i have several 220 plugs in my shop/garage, how many amp service does a charger require ? i have two 50/60 amp welder sockets, plus one 30 amp for one compressor, and two 20 amp sockets that are the same size as 110 sockets, but have the standard [?] 220 blade arrangement so you can't plug in a 110 appliance.
My understanding is most EVs will use what ever is available up to about 50 amps.
After that you need something that bypasses the charger in the car and provides DC voltage directly. I imagine these are pretty expensive.
