Is there some way for the car to be told what level of current can be drawn on any given charging circuit? I ask because (for my Nissan LEAF, I know...boo, hiss...) I have a modified EVSE and a number of pigtail power cords that will allow me to plug into various 20, 30, and 50A receptables. Now, in the LEAF it doesn't matter because my model year only charges at 240x/16A/~3.3KW -- so no matter what I plug it into it's not going to over draw the circuit. In an MS, that's a whole different story. If you're plugging into a commercial EVSE, the signalling protocol negotiates the current that both sides agree on... but how does that work if you're just using the mobile charger? Is there a way to explicitly "dial in" the current on the mobile charger itself? That seems high-risk for someone getting it wrong and tripping a breaker. Or does the mobile charger absolutely *Require* the use of the Tesla brand adapters, and the adapters themselves are keyed to tell the charger how much power is available? (This seems like the only thing that could meet electrical codes/compliance?)