EV charging

Maybe 10% - 20% for typical Level 2 (240VAC, 20A-50A) charging? Some of that will end up as heat in the battery itself (as opposed to in the onboard battery charger or in the wiring), which will be useful in cold weather but will require extra overhead for battery cooling in hot weather.

Cheers, Wayne
 
Don’t forget that the charger is in the car so it takes care of managing the heat. The thing on the wall (EVSE) is just a glorified switch. It will reject very little heat.
 
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