Good points. But, there must be a way to test batteries in an automated way at the replacement station and presumably take them out of service. And, like gasoli

Good points. But, there must be a way to test batteries in an automated way at the replacement station and presumably take them out of service. And, like gasoline distribution, a way to inspect and certify the workings of a replacement station so that the user has good confidence that they are getting a serviceable battery to carry along to the next replacement.