Battery swapping died in the US. Chinese companies are trying to bring it back to life.

Electric cars may be the future but they have a major limitation: it takes too long to charge their batteries. For example, even Tesla’s “fast-charging” option takes 30 to 40 minutes to bring the battery to an 80% charge. That’s eons compared to the few minutes it takes to refill a gas tank. What if, instead of waiting for a battery to juice up, why not just swap it out for a fully charged one?