This is interesting, but there is a huge caveat, because battery packs have lifespans. Ars reports “… drivers must swap back in their original battery pack on their return trip or pay a fee equal to the difference in value between the new and old batteries”.
So, it’s not analogous to propane tank exchange, where the containers have long life, are very interchangeable, and cost the same order-of-magnitude as the fuel it contains. Battery packs on the other hand have finite lives, have serious compatibility issues, and cost way, way more than the energy they store.
But another way to look at it is that you’ll have to buy a new battery eventually if you keep the car long enough, so just paying the old->new fee each time may actually be economical. But it could stink if your newer battery gets swapped out for an older one that can sustain a smaller charge.
Originally shared by Science
Ever dreamed of charging your electric car in less than two minutes?.
Guess what? Your dream has just become true!
Tesla Motors unveiled a system that will let drivers swap out the battery in a Model S in about 90 seconds, which is less time than it takes to fill up a traditional car at the pump.
“The only decision you need to make when you come to one of our Tesla stations is, do you prefer faster or free,”said Elon Musk, Chief Executive Officer of Tesla.
Official site (Video): http://www.teslamotors.com/batteryswap
#tesla #battery #electriccars