I actually had an older model of this sitting on the shelf. I gave it
a try on an old 32-bit laptop (the drivers wouldn't work for my old
model on 64-bit). Not bad, but with the big batteries I have it could
take quite some time to test each one.
I was able to run a test on an old 18AH UPS battery 10A without
problem. The battery was low and I only ran it down to 11.5V, so it
only took me about half an hour to test.
On 9/19/2014 7:03 AM, Ken Hohhof via Af wrote:
I have never used these but have noticed them on the website when
buying other stuff:
http://www.powerwerx.com/batteries-chargers/cba-iv-4-pro-computerized-battery-analyzer-commercial-use.html
*From:* TJ Trout via Af <mailto:af@afmug.com>
*Sent:* Friday, September 19, 2014 2:43 AM
*To:* af@afmug.com <mailto:af@afmug.com>
*Subject:* Re: [AFMUG] battery tester
Carbon pile battery load tester is what you need.
On Sep 18, 2014 3:07 PM, "Randy Cosby via Af" <af@afmug.com
<mailto:af@afmug.com>> wrote:
Ah, figured this out. Batteries have been getting down to 20c
around noon, temperature compensation of .12V per degree below
25c, 56.6V is where we top out. Just right.
On 9/18/2014 3:35 PM, Randy Cosby via Af wrote:
Before anyone mentions it, I know some of these batteries are
being charged too high. I have my charger (Tristar MPPT-60) set
for gel battery voltages, and the combined voltage is supposed to
top out at 56v. It looks like we're getting a little higher than
that, I need to figure out why.
On 9/18/2014 3:14 PM, Randy Cosby via Af wrote:
Getting back on topic (and trying to avoid double-spaces)...
I have two strings of four GEL batteries, all of them the same
age. They are all being charged by the same solar
panels/controller. Positive lead is connected to battery 1,
negative to battery 4. Load is connected the same way. I am now
monitoring each battery separately with a pair of sitemonitor
4-input modules.
One battery I know is bad - 1.1 (bank 1 battery 1). It drops
under 12v at night.
The graphs are puzzling to me. The other batteries I'm not sure
on. Each seems to have a different/profile slope when charging,
but similar (but not identical) slope when discharging. Take a look:
https://dl.dropboxusercontent.com/u/4059343/graff%20voltage%20graps.png
Anyone care to venture a guess as to why we're seeing these
differences?
On 9/18/2014 1:57 PM, Chuck McCown via Af wrote:
Telemetry. Just watch the slope of the discharge voltage at
night. I have tried to use impedance meters several times at
different companies and cannot get results that predict failures.
If you have a battery that should last several days, disconnect
the solar panels and watch the telemetry.
*From:* Randy Cosby via Af <mailto:af@afmug.com>
*Sent:* Thursday, September 18, 2014 1:06 PM
*To:* af@afmug.com <mailto:af@afmug.com>
*Subject:* [AFMUG] battery tester
Does anyone have a recommended battery tester for AGM and Gel
batteries at solar sites? I have batteries from 100AH to
225AH. Most of the automotive models seem to be concerned with
cold cranking amps, pretty irrelevant for us.
--
<http://www.infowest.com/> Randy Cosby
InfoWest, Inc
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InfoWest, Inc
435-674-0165 x 2010 <tel:435-674-0165%20x%202010>
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InfoWest, Inc
435-674-0165 x 2010 <tel:435-674-0165%20x%202010>
infowest.com <http://www.infowest.com/>
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<http://www.infowest.com/> Randy Cosby
InfoWest, Inc
435-674-0165 x 2010 <tel:435-674-0165%20x%202010>
infowest.com <http://www.infowest.com/>
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<http://www.infowest.com/> Randy Cosby
InfoWest, Inc
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infowest.com <http://www.infowest.com/>
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