This was posted on another list I subscribe to:

>Firefly now has a video out on their new battery:
>
>    http://www.fireflyenergy.com/OasisVideo/index.html
>
>The video claims 4x the cycle life under deep discharges, 3x faster
>recharge, and 45% more energy compared to conventional lead acid.
>They also say the battery has 65% of its juice at -20C temperature.
>
>The 3x faster recharge hints at low resistance. Unfortunately, these
>batteries are not any lighter than other group 31 batteries. They
>say the carbon foam electrode is sulfation resistant, hence the
>longer battery life.
>
>Intriguing on the spec page is a footnote reference to testing being
>based on a "25 Ahr high power battery." Hopefully that comes out,
>that could be quite a battery for a light and quick EV at a good
>price.
>
>This battery is still vaporware for the general public at this time,
>but since Firefly is a subsidiary of Caterpillar I have more hope
>than usual.
>
>Disclaimer: I do own some Caterpillar stock (FWIW, I also own stock
>in several other EV related companies but have never posted about
>them.).
>