ive posted a few questions about charging the last couple of weeks. Well, here i go again. I have decided that I do NOT want to install a 40A circuit. I just don't think it would benefit me. Right now I am using the stock evse on a 240v 30 amp circuit originally wired for a hot water heater. Ive done the adapter thing, etc and I am getting around 11 miles per hour of charge with the portable cord limit set to 12 amps. Works for me right now. However, I still want to purchase a 240v Evse and keep the portable one in the car. Looking for a specific type. want one with adjustable voltage since I can only reasonably use it at 24 amps. That should bump up my charge rate to around 18 miles per hour of charge time. there are two "problems" to this for me. One: I don't want to spend the money on the 24 amp evse and not be able to use it when I eventually get the whole house rewired and put in a 50A line... two: the current 30 amp line is only the two "hot" wires. there is no neutral so I would have to use the existing wiring setup or stick with what I have. Ive heard Juicebox is a good one, but what are the amperage levels available and will I need the neutral to wire it at 24 amp? Sorry if I sound "not so smart" with electrical..