cmj912 said:
I'm not sure, in any case, that my electric service (at 100AMP) would even support one of these things.
Our apartment also has a 100 amp panel. We installed a charging circuit with wiring sufficient for a 40 amp circuit, but we installed a 20 amp breaker so that an inexpensive 20 amp on-off switch and outlet could be installed. We don't have easy access to our charging circuit breaker, so I wanted to be able to shut off the charging circuit, if need be. Our 40 amp JuiceBox EVSE's maximum current is set to 16 amps so that the charging circuit's breaker won't trip.
Even at only 208 volts, 16 amps is sufficient to fully charge an empty i3 battery pack in about 8 hours. This works for our needs and usually doesn't result in the battery pack cooling system activating in warm weather which reduces the amount of expensive electricity needed to charge our battery pack. Should our situation change such that we need to charge faster, we could upgrade our charging circuit to be able to charge at 30 amps at minimal cost.
The appliances in our all-electric apartment are all high-efficiency appliances, so we aren't concerned about overloading our electric panel and tripping the master circuit breaker even if we charged at 30 amps.
If you are worried about overloading your 100 amp electric panel, you could charge at a lower current and/or replace inefficient electric appliances with Energy Star models.