Hydrocaps for IBE cells [RE-wrenches]

[Matt Tritt]

Dana,

You might experiment with a small batch of Water Misers and see how they
perform, but it seems to me that the best solution is with a good
re-watering system. There's been plenty said about the problems
associated with auto waterers on this list but, regardless of whatever
they may be, at least they don't care about voltage levels, temperatures
and they don't melt!

Matt T

-----Original Message-----
From: Dana Orzel [mailto:dana at solarwork.com] 
Sent: Saturday, February 21, 2004 6:50 AM
To: RE-wrenches at topica.com
Subject: Hydrocaps for IBE cells [RE-wrenches]


My .02 -  I quit selling "Hydro caps" years ago after getting in a
conversation with the manufacturer [I think from Florida?] where he was
telling me that 28.8 volts and higher [29.4VDC for unheated battery
packs in winter] voltages were outside the design of their product and
of course they would fail and melt. We were to be "charging to 26.8 to
27.2 VDC and holding at these float voltages till the battery was full."
We went round and round and I gave up trying to convince him that we
needed to get to higher voltages. I regularly run into melted down sets
have removed so many sets of melted Hydrocaps since that conversation
that I have not purchased or specified them in years. Great idea but
longevity & quality seems to be poor.

Are there long life-high quality rewatering caps that are approved for
higher voltages these days? Will they handle 31VDC for an equalizations?
Or do they need to be removed? [messy and a problem with
auto-equalizations functions]

Dana Orzel


Responsible Technologies for Responsible People.
Great Solar Works, Inc.
dana at solarwork.com - 970.626.5253
Ridgway, CO, USA

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