Lithium Battery - 2012

[Protagonist]

Originally Posted by Wazbro

Not sure if that makes a difference with lithium batteries, but they do use 2 separate batteries to run the car from in case the alternator quits.

It doesn't make a difference for lithium-ion batteries if you drain them fast (starting) or slow (house). I said they were starting batteries based on size. For lithium batteries there is a direct correllation between available amp-hours and battery weight (you can't finesse chemistry), and even two 6-pound batteries won't have the amp-hours to run much for long. Remember, in Nascar, if the alternator goes out and they start running on batteries alone, they can make a pit stop during the race to swap out batteries much easier than they can replace an alternator, so the batteries only have to last until the next pit stop.

[Wazbro]

Your right the 6lb battery probably wont last long, but a 25 or 28lb battery is 100 AH and $1299.99 (they list 2 different weights 28lbs might be shipping weight). Also 150 AH is 80lbs and $1699.99 or if you can afford it a 200 AH battery is 70.4lbs and $2299.99.

Lithium Marine Batteries

[JFScheck]

Clean-Tech Diesel is far superior too these Hybrid vehicles...

Oops - off topic...

[Protagonist]

The thread has morphed anyway. It was originally about the availability of lithium-ion house batteries at a reasonable cost, not about electric or hybrid cars.

I think we've established that lithium-ion batteries with enough amp-hours are available, but the price is still unreasonable in terms of dollars per amp-hour capacity. Though if you count the increased number of recharge cycles over an AGM and the relative ease of recycling, the life-cycle cost of lithium-ion may soon be competitive in terms of dollars per year of use.