Large Battery Banks [RE-wrenches]

Carl Emerson, Free Power Ltd. freepower at freepower.co.nz
Tue Oct 8 12:20:16 PDT 2002


Jeff,

I have also installed the Absolite IIP batteries, in a 4000 Ah bank. they
have performed flawlessly.

Regards

Carl Emerson
Freepower ltd.
Auckland
New Zealand.

Jeff Yago wrote:

> I have a client that due to downgrade of his health wants to remove
> large battery bank of 2 volt wet cells on his off grid home, and
> install a battery bank with absolutely no maintenance.  Cost not a
> primary consideration (within reason).
>
> I am considering stacked battery modules using sealed valve regulated
> 2 volt Daka Unigy II cells.  This would be two (2) stacks wired in
> parallel, 2000 amp-hours @ 48 Volt total, with a stack weight of 4100
> pounds each.  Existing loads on old system indicate there would only
> be a 20% daily draw down maximum, which should give him the very long
> no maintenance life he wants.
>
> We have also considered gel cells, C & D VRLA batteries,  and GNB
> Absolyte IIP batteries.  Has anybody used any of these brands or types
> for a system this large?  Good, Bad, Other?
>
> Jeff Yago
>
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--
Regards,


Carl Emerson
Manager
FREEPOWER LTD.  "Harnessing Natural Energy"
P.O. Box 10-1207 N.S.M.C. Auckland, NEW ZEALAND.
Ph. 09 4275206 fax 09 4275208  cell 021-633999  web www.freepower.co.nz

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