[RE-wrenches] Ideal platform for flooded type batteries: opinionswanted

[North Texas Renewable Energy Inc]

Mick
if you are near a pretty thick edition of the yellow pages, you should be
able to find a listing for someone who does plastic vacuum molding or
prototype molding. The vacuum mold system is perfect for large
non-critically dimensioned and low production custom pieces of plastic.
The mold core will be made of wood and shaped like the inside of the battery
tray. A sheet of plastic is heated then lowered onto the core and a vacuum
pump will draw the plastic tight over the core.
A basic tray, or several smaller trays for pairs of cells can be made up
pretty inexpensively this way.
If it is a size battery type you install often you could probably get a
better price for multiple pieces.
Here's a shot of a rather sophisticated production vacuum forming machine at
work. Smaller shops may have older machines but your needs are not critical.
Just be sure to specify the correct type of plactic that will be acid
resistant.
http://www.youtube.com/watch?v=WL-h0HAcdFA&feature=related

Jim Duncan
North Texas Renewable Energy
486 W.N. Woody Road
Azle Texas 76020
Since 1993
ntrei at 1scom.net
817.917.0527
www.ntrei.com
NABCEP Certified Solar PV
Installer No.31310-57
***

  -----Original Message-----
  From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org]On Behalf Of Mick Abraham
  Sent: Friday, April 30, 2010 10:22 AM
  To: RE-wrenches
  Subject: [RE-wrenches] Ideal platform for flooded type batteries:
opinionswanted


  Hi, Mechanix~

  My "customer du monde" has a dirt floor in the battery space but he's
willing to build something on which we could place his "wet" type batteries.

  Concrete is strong but it also tends to begin dissolving when battery acid
gets on it. Been there, seen that, didn't like it.

  Wood could be strong but what about the dissolving problem? Would pressure
treated wood be better than white wood, redwood etc.?

  OR: what else would the group advise for a support structure?

  ************************************************************

  The above questions assume that whatever we do will probably get wet, but
that may be too pessimistic. Could someone give me a mini-review of plastic
trays which would protect whatever goes beneath?

  I'm pretty sure polypropylene is the right type plastic but short of
custom welding by a plastic fabricator...where can I find trays which fit OK
with floor scrubber type battery case dimensions?

  Thanks all around,

  Mick Abraham, Proprietor
  www.abrahamsolar.com

  Voice: 970-731-4675
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20100430/2980b6f1/attachment-0004.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: North Texas Renewable Energy Inc.vcf
Type: text/x-vcard
Size: 166 bytes
Desc: not available
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20100430/2980b6f1/attachment-0007.vcf>