> > Excellent stuff.  Sounds like an ideal replacement has finally arrived,
both
> > weight and management wise, for Pb-H2SO4 SLA batteries banked up in
> > parallel for remote power applications.


> with one critical difference
> price
> lead acid batteries are unlikley to be surpassed in the near future in
terms
> of price/wattage. Li-Ion are really only used where weight and power
> density are key factors.


ALSO - do watch longevity - read the several faqs and descriptions of
Li-Ions of late. I think their life can be high flying but short in terms of
numbers of cycles. Lead acid isn't wonderful but may be better. For long
life and utter ruggedness Nickel-Iron were excellent (this observation based
on some very large ones we had at school many moons ago). Energy density may
be another matter.



        RM

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