this[0] page makes it seem 500~1000 cycles till 80% starting performance is common. So if you were charging it every other day from a 40~50 mile round trip commute, after 3~5 years you'd go to charging it every day.
As described there, this assumes slow overnight charging, and latest generation of batteries (not sure how viable that was the time of EV1).
Even LiOn batteries have charging patterns as the blocker to adoption, which means that practically, you'd get cars with less than 50% capacity by 2 years.
Also, not like it just keels over and dies, that's just the 80% performance criteria. Most people wouldn't need to replace the batteries at that point.
necovek|27 days ago
Even LiOn batteries have charging patterns as the blocker to adoption, which means that practically, you'd get cars with less than 50% capacity by 2 years.
lesuorac|28 days ago
However, it's not like the lead went anywhere so recycling your batteries for new ones every 5 years could be very practical.
wolfram74|28 days ago