Battery [edit changing to swapping]swapping is never going to work while people own the car and the battery. There will always be incentive to keep a battery t

Battery [edit changing to swapping]swapping is never going to work while people own the car and the battery. There will always be incentive to keep a battery that's healthy and dump a wonky battery back into the swapping pool. I've got a natural gas grill with a $20 tank. The tanks all have a "do not refill past this date" stamp on them to keep people from using 30 year old rusty tanks. New tanks typically have a stamp that's 10 or more years in the future. Some places swap the tanks rather than filling them. Whenever I took my tank to a "swap" place, the end-date is always closer to now than the one I gave them, to the point where you may start with a tank that's good to 2035 and if you swap it 8 times (over the course of 2 years) they'll refuse to take it because it will have expired.