Water Miser vs. Hydrocaps for batteries [RE-wrenches]
Windy Dankoff, Dankoff Solar
windy at dankoffsolar.com
Fri Jun 14 07:38:09 PDT 2002
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(subject title changed)
>Scott Suddreth said:
>
>>2) Does anybody have any preference between HydroCaps and Water Misers?
>Gator Tom introduced me to
>>the Water Miser in Atlanta and I'm leaning towards them. The seem to be
>less troublesome
>>maitenance-wise. The park rangers on the island are not the best at
>keeping the water levels topped
> >off.
>Scott,
>
>If you want an easy opening battery cap Water Miser does a superb job. If
>you want to minimize the battery watering chore HydroCap can help you (or
>your sloppy Park Rangers) better.
>
>PS The other advantage of Water Miser is you don't have to communicate with
>George.
>
>Bill Loesch
Bill - it's not George himself that's the problem (G. Peroni at
Hydrocap) -- it's the critical nature of fitting the cap to the
parameters of the system. George is diligent in keeping you within
those parameters whether you like it or not. Unfortunately, you have
to keep within critical limitations of hydrogen output, or the things
will overheat and melt. You must tell George the HIGHEST charge
current and voltage that will EVER occur, or you might see the caps
leaning over some day from overheating. When they are designed for
those max conditions, they don't do well at recycling water under the
usual lower current conditions. Dat's da way it is. They are terrific
for most battery systems used in various industries. They are
terrific for PV systems and backup systems that don't (and won't)
have high-rate backup charging. But, with many of today's systems
with backup generators, they aren't optimum. If the customer thinks
they will eliminate (rather than just reduce) the water loss, he
doesn't even think of checking the water. Also, Hydrocaps need to be
baked in warm oven about every 5 years to revive them. They are a
great product if you treat them right, but to many customers remember
the ideals and forget the realities.
Water miser caps? -- They good for what they do, but are misnamed.
They are a really nice easy-opening cap that probably reduces acid
spatter, but they do NOT recombine H + O2 and recycle the water like
the true catalytic Hydrocaps do. We tried some on a home system --
put them on 4 cells of a 24V battery and after many months, the water
loss was about the same in all cells, NO less with "misers".
Windy
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