Hi Steve,
Thanks for the links. They've got a lot of different product. I did find the Smart VH product that is based on Ni-MH technology.
http://saftbatteries.com/Produit_Smart_VH_module_330_40/Language/en-US/Default.aspx
They describe the main apps as E-bikes, scooters and other light EVs. These NiMH batteries weigh about 25% more than Thundersky Lithium prismatic cells for the same rated capacity.
Moving on to their rechargable Li-Ion offerings, we can look at the 28V LBB-ITAS
http://www.saftbatteries.com/doc/Documents/defence/Cube769/ITAS%20Data%20Sheet-28V%20LBB.8f57d3a5-17fc-479b-86ee-df22dce4f48b.pdf
This "Li-ion rechargeable military battery system" are pretty similar to the capacities of regular LiFePO4 cells. They weigh about 10% more than loose Thundersky cells, but they come in those cool military boxes that are waterproof to 3 feet and will work at 50,000'. Unfortunately, the max discharge rate is C/3.
They also offer really small (and light) prismatic Li-Ion cells, the Li-Ion MP cells.
http://saftbatteries.com/Produit_MP_cell_range_301_69/Language/en-US/Default.aspx
These are the closest to what we use today. I don't know the prices, but the MP176065 (3.75V x 6.8Ah) will build up to a pack (320 cells) that weighs half of what my Thundersky cells weigh for the same rated capacity. A lot more connections, but certainly a viable alternative.
That's my quick analysis.
Fair winds,
Eric
Marina del Rey, CA
--- In electricboats@yahoogroups.com, Steve Dolan <sdolan@...> wrote:
>
> Wow, I was just talking to a security guy working with the Military who uses these batteries and he gave me 2 "C" cells (LSH 14) to play with.
>
> http://saftbatteries.com/Produit_HEMV__Hybrid_Electric_Military_Vehicles__353_103/Language/en-US/Default.aspx
>
> http://saftbatteries.com/Produit_MP_cell_range_301_69/Language/en-US/Default.aspx
>
>
> Most of the battery chemistry looks to be exotic and somewhat dangerous but are used in harsh environments. Some packs have a built in charger.
>
> Steve in Solomons MD
>
>
> -----Original Message-----
> From: electricboats@yahoogroups.com [mailto:electricboats@yahoogroups.com]
> > Hi Kirk,
> >
> > Good article. It has been almost three years since the article was published, I wonder if they've moved the experiment out of the laboratory and into the field with a full size pack in a car on the road. I have a fiend that works as a program manager at SCE, I'll have to see if she can dig up an update on this initiative.
> >
> > In the mean time, has anybody found any specs of rechargable Li-Ion batteries from Saft?
> >
> > Fair winds,
> > Eric
> > Marina del Rey, CA
> >
>
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