Battswap is being trialled by trucking companies, with much larger and heavier batteries than in cars. The engineering problems are fiddly and time-consuming to get right but not intrinsically difficult.

With battswap also being done at the lightweight end, eventually there will be convergence in the middle. But I think we have another decade or fifteen years to wait before standardization efforts have a chance and battswap can be vehicle manufacturer agnostic.

Battswap is an obvious way to lower the sticker price of vehicles, which is key to selling the next half billion of them.