campground

I want to buy a portable level-2 EVSE to keep in my Kona in case I find myself out of range of a J-1772 plug. I assume that remote areas are more likely to have campgrounds, and if they allow RVs, they'll have 30A (NEMA 14-30 wall plug) or 50A (14-50 wall plug) service. I did a random search...