Ok, I don't understand something. When they are available, I will install an HPWC in my garage and it will be on the same circuit as the drop (240v circuit breaker) from my garage sub panel as the NEMA 14-50. The same voltage AND the same current is available to both the socket and device. What is it that the HPWC does that makes the car charge faster? (With twin chargers in same car.) I simply don't understand the difference between plugging into one vs. the other. You can invert voltage (step it up) but you cannot "increase" amperage. Is it intelligence within the HPWC that "enables" the second charger? Why the need? Having used a Leaf L2 wall "charger" for a while, I understand there is communications between the two (compared to L1) ... but I don't see the logic or need for the HPWC? I am sure this has been answered before but I cannot find it.