They also have 2% ev marketshare in China, because its still an expensive and complex feature that has downsides that the previous comment mentioned. Like these high energy batteries are dangerous as the can burn quite spectacularly, so I personally would not want to take and remove one from my car every charge hen I can wait a few minutes at a regular charging station that is much more common than a replacing station.
I think swappable batteries may be a more practical solution for heavy trucks rather than cars. They have the advantage that they are already built to carry heavy things loaded by forklift, unlike cars.
