Steve:
I'm thinking of installing a switch that would turn the Paktrakr on and off when I need to look at each battery's voltage rather than keep it connected all the time. I already have an XBM battery monitor that is connected to the 48 volt bank via a 48 volt to 12 volt converter. But, that is for viewing in the cockpit while at the helm. Plus it is not connected to any single battery in the string but, takes it's power from the whole bank. My Paktrakr was installed inside the main cabin so I could quickly see each battery's voltage when I wanted to easily. Which is not too often but, considering it is a full time load on the most negitive battery I think it best to eliminate it or minimize it's load when I can.
Capt. Mike
From: Steve Dolan <sdolan@scannersllc.com>
To: "electricboats@yahoogroups.com" <electricboats@yahoogroups.com>
Sent: Monday, May 7, 2012 6:16 AM
Subject: RE: [Electric Boats] Battery Investigation: Load test
To: "electricboats@yahoogroups.com" <electricboats@yahoogroups.com>
Sent: Monday, May 7, 2012 6:16 AM
Subject: RE: [Electric Boats] Battery Investigation: Load test
Hi Mike,
At your blog you said "keep parasitic loads off any one battery in the string." How do you plan on doing this? I'm unaware of any alternative power connection for the PakTrakr.
Thanks,
Steve in Solomons MD
Lagoon 410 SE
Finally got around to load testing my four year old 8A4D AGM batteries. You can see the results here:
http://biankablog.blogspot.com/2012/05/battery-investigation-part-8-load.html
All passed but, four years of the parasitic drain on the lowest (most negative ) battery does appear to show up in the results. But, that battery has come a long way from intially not completing the charge cycle this winter and now charges up nicely with the other batteries. Now that I have some baseline load data I will be able to keep a better eye on the bank as it ages.
Capt. Mike
http://biankablog.blogspot.com
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