Winnebago Electric Motorhome on a F-53 chassis

I recall Tesla started a pilot program 3 or 4 years ago to test a 3 minute battery swap program, but I don't know what became of it. Now I see that China's 220 mile range NIO EV will have a 3-minute swap option as well. Obviously the swap takes some significant on-site automated technology, but I can't help thinking of all those Blue Rhino LP cylinder cages we see all over the place... :)