I'd contest the "easily setup" bit in your post. You need a physical enclosed space with a lift or at least some mechanism to swap batteries which are likely to

I'd contest the "easily setup" bit in your post. You need a physical enclosed space with a lift or at least some mechanism to swap batteries which are likely to be 200-300kg each, it has to deal with rust and other shit that happens underneath the car. Then you likely need to move batteries around as demand changes. It's not at all like a charging station where the infrastructure is most of the time already there.