My understanding is that with the model S and X, the dual charger option means you can charge at 2x10 amps at 240V for 40 amps @ 240 V, but there's only one connector on the car. Wouldn't it be useful in many cases to have two connectors on the car? Some cases I can imagine where this would be useful are plugging into two street charging poles when no one is at two adjacent spaces, or plugging into two 240V wall plugs, or 2 120V plugs, or even one 240V 240V and one 120 V plug simultaneously.
It would seem to me that having the option of choosing either two independent supplies via two independent plugs, or ganging both together to get a higher current through one would be a major advantage. The cost would just be the extra car plug and a relay in the car I'd think. Driving an EV in the wild is still a bit of an adventure, so the more options the better I'd think.
It would seem to me that having the option of choosing either two independent supplies via two independent plugs, or ganging both together to get a higher current through one would be a major advantage. The cost would just be the extra car plug and a relay in the car I'd think. Driving an EV in the wild is still a bit of an adventure, so the more options the better I'd think.