Think about a Tesla's max range. Something like 500 miles. That might be something you run up against once or twice in a year with a normal car usage, but with

Think about a Tesla's max range. Something like 500 miles. That might be something you run up against once or twice in a year with a normal car usage, but with a RV that's like every trip. If you could triple the range then you still need to probably quadruple the batteries for the size and dynamics of the RV, so that a 12x multiple for batteries. Assuming it's 1/2 the cost of a Tesla is the batteries then your looking at something like $250k just for the batteries.