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As a strawman, it should just possible to have a kind of "B-train" with a smaller, detachable battery unit just behind the tractor (apologies to truckers if I am using the wrong terminology). This way it would be possible to swap this out super fast. Maybe it could be at the back for faster swap.



And even if not, you could "pony express" a route across the USA with locations that just have the trucks charged and ready to go.

Pull in, grab dinner while the crew unhooks your trailer and hooks it to another already charged semi, and then off you go.

Wouldn't work for owner-operators but a large enough line could do it if they wanted to for the climate/PR benefits.

Of course, that kind of hauling can be done by railroads, too.


Isn’t having crews doing this hooking/unhooking going to kill the price competitiveness of EV semis?


I think pack at the back designs would be quick to swap out. Going on a long trip - use two.


Theres already designs for doing quick swaps, like always its the challenge of standardization:

https://youtu.be/g4EbWRDXzZw?t=49




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