Send RE-wrenches mailing list submissions to
[email protected]
To subscribe or unsubscribe via the World Wide Web, visit
http://lists.re-wrenches.org/listinfo.cgi/re-wrenches-re-wrenches.org
or, via email, send a message with subject or body 'help' to
[email protected]
You can reach the person managing the list at
[email protected]
When replying, please edit your Subject line so it is more specific
than "Re: Contents of RE-wrenches digest..."
When responding to posts within the Digest, be sure to restore the
Subject: line to the original, and please edit out any extraneous lines
from the quoted message.
Today's Topics:
1. Re: Are Thick Plate Batteries Worth the Price? (Dave Palumbo)
----------------------------------------------------------------------
Message: 1
Date: Fri, 29 Oct 2010 22:57:43 -0400
From: "Dave Palumbo" <[email protected]>
To: "'RE-wrenches'" <[email protected]>
Subject: Re: [RE-wrenches] Are Thick Plate Batteries Worth the Price?
Message-ID: <051901cb77de$42a97d00$c7fc77...@com>
Content-Type: text/plain; charset="us-ascii"
All,
I've worked with most battery types in 23 years in the trade. There are
no
easy answers here. We see the unusual T-105 battery bank go 12 years.
Conversely we have seen people blow through L-16's in 3 years. I
personally
have some gigantic (Hoppecke LA's 330lbs each cell) 2v cells in my shop
system that are 16 years old and show no signs of decline. They are
German
made and brought in special to make good on a failed fibered NICAD
battery
we sold for Hoppecke in the early 90's (that was not a pleasant
experience,
I would not do it again, even for a free 20 year+ battery bank as a
make-up
gift). Also, I wouldn't want to actually buy these large 2v cells.
If you can trust the life cycle, depth of discharge, charts from the
manufacturer and calculate a simple "best value" for the dollar, than
you've
done your job. Then it's up to a good system sizing design, good metering
and great user care. Our number one rule is "fully charge every ten days
(at
least)". If you do this, you avoid sulfation, the number one culprit in
early battery demise.
For a small system the T-105's typically are the best value. In larger
system's there are more choices. A string, or two, of 2v cells can be an
excellent choice depending on the price/value ratio. Medium size systems
will normally call for Surrette/Rolls 6v, or Trojan L-16 batteries. All
for
off grid applications. Sealed batteries for battery backup grid tied.
Dave Palumbo
Independent Power LLC
Offices in Lamoille and Champlain Valley, Vermont
www.independentpowerllc.com
NABCEP Certified PV Installer
Vermont Solar Partner
802.888.7194
From: [email protected]
[mailto:[email protected]] On Behalf Of jay peltz
Sent: Friday, October 29, 2010 8:52 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Are Thick Plate Batteries Worth the Price?
HI Nick,
I gotta ask have you ever seen a battery last 25 years that wasn't in
float
and had to do some work,
or even 15 years?
jay
peltz power
On Oct 29, 2010, at 5:17 PM, Nick Soleil wrote:
You generally pay for what you get. The industrial 2V cells generally
cost
more, but will last a lot longer (up to 25 yrs.) I think it depends on
the
customer's budget, and the long term plans for the property.
Nick Soleil
Project Manager
Advanced Alternative Energy Solutions, LLC
PO Box 657
Petaluma, CA 94953
Cell: 707-321-2937
Office: 707-789-9537
Fax: 707-769-9037
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20101029/ac82880a/attachment.html>
------------------------------
_______________________________________________
List sponsored by Home Power magazine
List Address: [email protected]
Options & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
List-Archive:
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
List rules & etiquette:
www.re-wrenches.org/etiquette.htm
Check out participant bios:
www.members.re-wrenches.org
End of RE-wrenches Digest, Vol 3, Issue 600
*******************************************
