I have never thought that it made any sense to insulate a battery box. It
might be logical to put a break between the cold ground and the batteries
but otherwise it's a waste of time.
They need to be vented to clear the gas. Also the battery is so dense that
it changes temperature slowly anyway.
As you know, cold floors reduce battery charge. We use a support "shelf" made of pressure treated 2 x 4 on EDGE, separated by 3/8" pressure treated plates every 2 feet, using 8 foot long boards. This 16" wide by 8 foot long shelf is placed on standard concrete blocks spaced every 2 or 3 feet,
Jeff:
This racking system sounds like it would be a nightmare during an
earthquake. We have a system with IBE 2 volt batteries that suffered major
damage during an earthquake in our area in 2003. All of the batteries
tipped over and spilled their entire contents in the battery
room.
Each of us has developed our own solutions. I like to keep batteries in
a tempered space, to maintain reasonable winter temperatures. Tempered
doesn't mean thermostatic heat, but an insulated space with a trombe
wall that holds 50F or more in winter is sweet. I often put batteries
indoors in
in my solar trailer and find them very
satisfactory.
Dan
--- On Fri, 4/30/10, Mick Abraham m...@abrahamsolar.com wrote:
From: Mick Abraham m...@abrahamsolar.com
Subject: [RE-wrenches] Ideal platform for flooded type batteries: opinions
wanted
To: RE-wrenches re-wrenches@lists.re-wrenches.org
Mick,
The boxes from Radiant Technology are very nice. For four L16
batteries or golf cart batteries the Contico Pro Tuff Bin from Lowes
works really well, is very durable, and an excellent value. If
building a box out of plywood, the bottom should be acid resistance
such as fiber-glass resin
I haven't seen a problem with concrete, but wood definitely rots out when
exposed to acid, including pressure treated.
(Saw a system with Battery shelving made from wood where the top shelf
collapsed from acid rot..)
Acid also eats foam board, unsticks silicon seal, and gets under and
Ray,
I haven't installed any HUP batteries in several years so my info may
be out of date but the steel case on the older HUP batteries had drain
holes on the bottom.
Kent Osterberg
Blue Mountain Solar, Inc.
R Ray Walters wrote:
I haven't seen a problem with concrete, but wood
definitely
We had a HUP cell freeze and crack once, and it didn't leak out.
I just double checked with Northwest Energy Storage, and they confirmed that
the steel casing will contain a spill, and doesn't have drain holes.
They said that in one case, a customer overfilled the batteries, and that the
casing
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