Sunday, November 14, 2010

Re: [Electric Boats] Picking batteries

 


Sent from my iPhone

Sent from my iPhone

On Nov 14, 2010, at 12:25 PM, "Eric" <ewdysar@yahoo.com> wrote:

 

I was also going to mention the weight factor. running some quick calculation from the spec sheets that were on the provided links, the NiFe batteries seem to be between 8 to 10Wh per pound. Compare that to 20Wh/lb for Odyssey PC1800 AGM, 22Wh/lb for T-105 FLA and 40Wh/lb for Thundersky LiFePO4.

Fair winds,
Eric
Marina del Rey, CA

--- In electricboats@yahoogroups.com, "Don Parsons" <tdparsons@...> wrote:
>
> I agree with you Kevin,
> but feel the need to point out the difference
> between what is available in NIFE from Be Utility Free or any other source and what is no longer made by Eagle-Picher who supplied the batteries for the Dodge T-van.
> The Eagle-Picher battery pack in the T-van weighed 1650 lbs. 30-6 volt
> units of 200AH making 180 volts. An equivilent pack of NIFE from what is available today would weigh over 3000 lbs and also would be way bulkier. Both negatives for installation in boats.
> Now I know most boats don't need 180 volts, so a modest setup of NIFE could still be worked out in a monohull, but personally I need a light power source for a multihull sailboat.
> We need a battery geekoid or a tech wiz from the former Eagle-Picher
> to leak the chemistry of that battery and tell us how to make them ourselves.
> Reread John Paramore's post from 07/2009(type NIFE into the search box.)
> I have an interesting link on the T-van battery pack
>
> http://tzev.com/1993_tevan_battery_trays.html
>
> This guy has or had 3 sets of NIFE for sale a while back.
> I was seriously thinking about it. But didn't have an extra $12,000
> laying around.
>
> NIFE has potential, I hope someone gives it a good try and posts
> the results here.
>
> Don Parsons
>
>
>

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