I have an EV that, like most, came with a Level 1 EVSE that can charge my car with 12A @ 120V. Now, I'd really like to be able to charge at work without needing to buy another EVSE, but at work, we only have NEMA 14-50 receptacles, which provide up to 50A @ 240V. I am aware that I can just take one of the hots, the neutral, and the ground and get 50A @ 120V, but I'm curious if my EVSE can handle a 240V input.
Basically, I'm hoping to get rid of the neutral from the NEMA 14-50, wire it to a NEMA 5-15 receptacle, but with the neutral as the second leg (as if it were a NEMA 6-XX instead).
Can a 120V EVSE handle 240V, and has anyone done this?