Engines, transmissions and differentials are all consumables too, and require far more maintenance than a battery. When the battery in an EV has too much degrad

Engines, transmissions and differentials are all consumables too, and require far more maintenance than a battery. When the battery in an EV has too much degradation to stay in the EV, it can still be used for stationary storage. The main thint driving EV depreciation right now, and this will likely continue for some time, is how quickly the technology is improving.