It's already possible to swap the battery pack on a Tesla Model S faster than a gasoline car can be refilled.[1] That is special equipment, but presumably modul

It's already possible to swap the battery pack on a Tesla Model S faster than a gasoline car can be refilled.[1] That is special equipment, but presumably modular batteries that are quickly bolted into a large cavity on the underside of a plane would be possible. It might only make sense in hubs, or highly traveled routes to put the equipment in place, though. Slower charging when the plane is on the ground overnight at a regional airport for example probably wouldn't be a problem.