----- Original Message -----
From: Darryl Thayer
To: RE-wrenches
Sent: Friday, December 10, 2010 8:00 AM
Subject: Re: [RE-wrenches] To insulate a battery bank
I have always been concerned with both high and low temperature. On
case of a battery bank failure it was insulated with 1.5 inch foam (no acid
problems) but the battery melted I think from thermal runaway and
--- On Fri, 12/10/10, bob ellison <[email protected]> wrote:
From: bob ellison <[email protected]>
Subject: Re: [RE-wrenches] To insulate a battery bank
To: "'RE-wrenches'" <[email protected]>
Date: Friday, December 10, 2010, 5:32 AM
With the amount of lead in a battery bank it changes temperature very
slowly. Both gaining and losing heat is a very slow process.
I have never insulated battery banks, if in a cold area like here we
size them larger for the slower reaction time in the winter anyway. Part of the
reason being that I would bet that the acid would raise hell with the
insulation!
We regularly see battery banks that are 40 degrees or so it presents
no problem.
If the exhaust fan is running in a 70 degree building all it does is
draw the warm air over the top of the battery and not really warm them much
anyway, in an unheated building it will probably not make much difference.
The only way that I would put insulation in an unheated battery box
is on the outside of the plywood, away from the acid and gasses. I would also
make it removable in the summer.
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