I was able to find some more amp info on the charger itself.
It is 26 amps max at 240volts.
Output is 95 peak amps at 36 volts.
That means it uses 6240 watts in to make 3420 watts out!
Doesn't sound very efficient
What happens to the other 2800 watts? If it is all converted to heat, that's a big electric heater! Ok if I am working in the garage in the winter, but a lot of wasted electricity otherwise!
The vents on the back of the charger were covered with duct tape. I am assuming that was to keep dirt and dust out, NOT to help keep it warm!
It looks like a new 240V, 50 amp circuit breaker is about $30. I can find electric stove power connectors at the local thrift store for cheap.