Barry, bad advice. The national electrical code requires that constant loads, such as an EVSE, cannot run at more than 80% of the circuit capacity. A 50 amp circuit cannot run higher than 40 amps with a continuous load.
Yes, I realize the NEC recommends 80% capacity. At 100% capacity (50A) the breaker won’t trip (if wired correctly). And you have to make sure you have a 50A plug.
However, at 100% capacity, the breaker and plug temperature needs to be monitored. That’s what I did at my nephew’s house with a 30A breaker. I told my 2022 Niro EV to go with “Reduced” which is 28A. By NEC standards, you want that at 24A. But I monitored the plug and breaker temperature, and it was OK at 28A (barely went above room temperature).
If you want to test for the full 11kW that the 2023 EV is capable of, I’m just suggesting you can do it; but just monitor it. Monitor that 50A plug. Monitor that 50A breaker as 46A is being run through it.
Hopefully it’s understood this experiment is done at your own risk. I feel confident in doing it because I would have a UL listed plug, a UL listed breaker, properly attached cabling, and clean sockets and blades.
For a heavy-use solution, the 60A hard wired EVSE is best.
-Charging at home; a hidden gem of EVs.