I'm planning to install a HPWC for my mothers MS 85. It only has a single charger, so I'm leaning on just setting it up for a single 50 amp circuit. I currently have a p85 with dual chargers and have always just charged at 40 amps (just don't need 80 and its less efficient) My question is, should I pull a 6/2 wire that the HPWC requires (and from what I can see most j1772 chargers?) or pull a 6/3 wire to future proof for a 14-50 receptacle or some other standard. Cost is another $120 for wiring, but if I don't need it and charging standards stay pretty much the same, its sounds like a waste of money.
Thanks!