One problem is that these battery swap stations need to be almost as ubiquitous as gas stations (at least along highway routes) to be convenient, otherwise it'l

One problem is that these battery swap stations need to be almost as ubiquitous as gas stations (at least along highway routes) to be convenient, otherwise it'll take very careful planning on road trips. But because swap-outs are the rare exception rather than the norm, they don't benefit from scale, so it's unlikely they'll be ubiquitous unless there's a cheap way to automate it.