Well, that's the crux of it. But why put the charger and its weight in the car when a box in the house wouldn't add any weight. An outdoor housing for such a device would be tricky but not impossible. Getting it from the J1772 directly is the wasteful part since there's no reason to generate a pilot signal if you're just going to generate D/C. But the nice thing about a J1772 to TEPCO is it recognizes that most people are using both to charge an EV. I mean, such a device will probably cost hundreds because it includes the charger and complex, CHADeMO circuity as well as is able to communicate via the Pilot signal what its maximum charge is. I don't know CHADeMO so I don't know how it negotiates charge, or if it negotiates charge. For all we know, it may be impossible because CHADeMO only allows 63kW charging (IIRC). But the good news is J1772 has an upper-bound so we know the Inverter only has to have a maximum capacity of 240VAC 80A since that's all the J1772 spec allows.evnow wrote:Yes - but you don't have a DC charger ...TimeHorse wrote:Well, my main reason is I have a Clipper Creek CS-100 with a 125A breaker in my garage so I'm well-suited to draw up to about 19.6W out of my wall.
I beleive CHADEMO is a direct DC connection to the battery. So voltage is important - and the charger needs to be able to handle all the communication & control for charging.
Again, I think it's theoretically possible but I'm a Software Engineer, not an EE so I don't know for sure and without the CHADeMO and J1772 specification it's really just speculation.