Hydrocaps for IBE cells [RE-wrenches]

[Tom Lane, Energy Conservation Services]

What is a HydroCap?? All it is - is 2 pieces of carbon with a platinum
screen glued between the 2 pieces of carbon or sandwiched between the carbon
blocks is the platinum screen.  Anybody who barbeques with charcoal
briquettes can easily understand what happens to the carbon block over time
or during an intensive equalization from an inverter.  You can turn a carbon
block to charcoal dust in a HydroCap easily with an equalization charge.
Over time it will turn to charcoal dust anyway.  Break one open and you will
see what I am talking about- this is no mystery as to what is in a HydroCap.

Gator Tom

----- Original Message ----- 
From: "Matt Tritt" <solarone at charter.net>
To: <RE-wrenches at topica.com>
Sent: Saturday, February 21, 2004 12:46 PM
Subject: RE: Hydrocaps for IBE cells [RE-wrenches]


> 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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