[RE-wrenches] FW: Battery impedance analyzers

[Tump]

This comes from Jeff Skelski a guy that has been involved for quite a few
years w/ batteries, EVs & Jeff also works w/ a hi freq battery desulphator
group. this is his response & contact info FMI.

jeffski at the-spa.com

I have been using conductance technology for 10+ years and it is a great
tool. I can test a bank of 24(up to 100) batteries is less than ten minutes
and get a print-out. It is only a very good guide that has the advantage to
be used without disconnecting anything. The more you use a conductance
tester the easier it is to learn the short-comings. It has the ability to
test a battery, or a bank that is not fully charged. It is also great for
matching a used battery to an aged bank. It I have a question and suspect a
particular battery, I still will use my carbon-pile or load bank along with
other indicators. I have been using the Midtronics and am currently testing
the Auto Meter. 

I use both Automotive and SLA(ah)units of different sizes. The prices do
very but as the old adage goes you get what you pay for, my regular unit is
an $800 Midtronics plus a $400 printer. I am not a part of the wrenches
group, nor am I very good with email. I would love to join but probably
can't as I am only a battery / energy guy. Jeff

>

-----Original Message-----
From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Dana
Sent: Friday, March 27, 2009 5:02 PM
To: 'RE-wrenches'
Subject: [RE-wrenches] FW: Battery impedance analyzers



I forwarded this query to Rob Shappell of NWES here is his response. SEE
Below.

 

Dana Orzel

 

Great Solar Works, Inc

www.solarwork.com

E - dana at solarwork.com

V - 970.626.5253

F - 970.626.4140

C - 970.209.4076

"I'd put my money on solar energy. I hope we don't have to wait 'til oil and
coal run out before we tackle that."

-Thomas Edison, in conversation with Henry Ford and Harvey Firestone, March
1931

 

From: Rob Shappell [mailto:rob at nwes.com] 
Sent: Friday, March 27, 2009 2:04 PM
To: dana at solarwork.com
Subject: RE: [RE-wrenches] Battery impedance analyzers

 

Hi Dana,

 

I have no direct information as to their abilities. 

 

What I can say is that we had a battery that looked like it was melted down,
I'm talking about lead terminals that were drooping and melted!! They were
cooked and starved of electrolyte! We replaced the batteries, but some how
the cooked batteries got into the hands of a guy who had an impedance
analyzers. He cleaned them up and did some testing  and claimed that the
batteries were all OK. Not long thereafter, the cooked batteries showed up
on eBay. Not too long after that, we sold replacement cells...you be the
judge.

 

The battery industry is working on a reliable device that makes it much
easier to determine the health of a battery, but I think it is hit and miss
at this point in time.

 

Rob

 

 

 

Rob - do you have an answer for these boys?

 

 

 


On Mar 27, 2009, at 6:19 AM, Travis Creswell wrote:

 

Hi Larry,

 

I've often wondered about them.  My local battery "superstore" (everything
from cell phone to golf carts) had been using them for the last few years to
test automotive starter batteries and deep cycles but the last time I was in
there I noticed they'd gone back to the old standby resistance/carbon pile
style testers.  I inquired and wasn't able to get any exacts but the summary
was they were not happy with them.  I'm curious to know your findings on
both fronts.

 

Best,

Travis Creswell

Ozark Energy Services

www.ozarkenergyservices.com <http://www.ozarkenergyservices.com/> 

 

 

  _____  

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Larry
Crutcher, Starlight Solar
Sent: Thursday, March 26, 2009 7:08 PM
To:  RE-wrenches @lists.re-wrenches.org
Subject: [ RE-wrenches ]  Battery impedance analyzers

 

Hello Wrenches,

 

Is anyone using an impedance type battery analyzer for lead acid batteries?
If so, what do you have and how has it worked out. I have seen prices from
$200 to $7500 and I'm sure there is a world of difference. 

 

I have been using a pulser circuit I built about 4 years ago to restore
nearly dead AGM batteries but I have not had any sophisticated method of
verifying before and after performance. I perform a constant current
equalization with no voltage limit and then leave the battery on the pulser
for a few weeks. This works great and I have restored and sold a few used
AGM batteries that would have gone to the recycler. Today our battery buyer
just picked up another 15,400 lb. of batteries from us. Yep, they were
mostly murdered! I would like to be able to restore more of them.

 

_______________________________________________


  


  
  


  


  
  
List sponsored by Home Power magazine


  


  
  


  


  
  
  


  


  
  


  


  
  
List Address: RE-wrenches at lists.re-wrenches.org


  


  
  


  


  
  
  


  


  
  


  


  
  
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

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20090330/ba1703a8/attachment-0003.html>