When I was working in a warehouse as a poor college student we drove electric forklifts inside for obvious reasons.

When the forklift went flat, you got another forklift to remove the battery and replace it with a fresh one.

Tesla tried this once and it wasn't a great success however, if you have a depo with a stack of batteries, you run a fleet of trucks, this makes a lot more sense.

It's something I'm suprised hasn't been floated as a lot of the customers for the electric trucks are fleet customers