Among the plethora of skeptical responses to our "car of the future
" piece from earlier this week was people debating about what happens to all those batteries after a few-thousand charges. Well, now we can answer that -- for some batteries and some charging techniques, anyhow. MIT
's Electric Vehicle Team took an A123 battery pack (the same type to be used in the Fisker Karma
) and subjected it to 1,500 discharges and rapid re-charges (ala the CHAdeMO
). The result was a 10% decrease in life over what equates to a couple years worth of refills, which sounds pretty good. That said, not all packs are created equal, your mileage may vary, and whatever other disclaimers you think might apply.