[C38] Two Electrical Problems
Julian Adams
julian at umich.edu
Wed Oct 1 15:16:26 EDT 2014
Thanks Mark. I do like the idea of solar panels (particularly when they
only cost $160!). However, I would worry about the issue of standing on
them. How do you hook them up when you have the hatch cover moving back
and forth?
[image: AAAsignature2c]
************************************************
Julian Adams
Department of Molecular, Cellular and Developmental Biology
University of Michigan
830 N. University, Ann Arbor MI 48109-1048
Tel. (734)-763-3431; Fax (734)-647-0884; Cell (734)-239-3627
E-mail julian at umich.edu
************************************************
*From:* Mark Lewis [mailto:mwlewis2025 at gmail.com]
*Sent:* Tuesday, September 30, 2014 3:12 PM
*To:* Catalina 38 Listserve
*Subject:* Re: [C38] Two Electrical Problems
Julian,
Catching up on old posts, so your electrical issues may be history. I
installed a 3 panel solar kit (Costco $160!) that puts out 55 watts and
comes with a voltage regulator and small inverter (run a TV). What's cool
is it keeps my refigerator cold and my batteries topped off for starting,
regardless of how long I'm off the grid, and without ever starting the
engine. I can sit at the mooring in Catalina for three nights and never
start the engine ( of course we are blessed with endless sunshine). Other
cool thing is the panels fit my hatch cover perfectly - so as long as I
don't stand on them putting the sailcover on/off, I'm good.
Mark
On Thu, Jun 26, 2014 at 1:08 PM, Julian Adams <julian at umich.edu> wrote:
I have two electrical problems that have been resistant to my tinkering.
1. Low voltage at the helm. I mounted a Garmin GPS unit (4308, I think
the number is) ate the helm. Every so often (typically when I need it
the most) the screen goes blank. I sent it back to Garmin for service at
a cost of $500 only to receive a reply that there was nothing wrong. A
Garmin rep. told me that it was likely low voltage at the unit and sure
enough when II measured the voltage it was 8-9 volts. He suggested that
it may be a bad ground. I replaced the cord and resoldered connections to
no effect. So if it is a bad ground where do I start looking? I thought
everything was grounded though the keel. OK, maybe I am just showing my
ignorance here?
2. This problem is unconnected to the first. At the dock I can charge
the batteries to the usual 13-14 volts (through shore power), but when we
are cruising, and on the hook for several days the battery voltage
steadily goes down to 10 to 10.5 volts (over say 3 -4 days) irrespective
of how long I run the engine to top off the batteries. I have removed the
alternator and had it serviced. I also have a unit called an alternator
controller, made by a company named called "Spa Creek". I have no manual
for it; the company no longer exists so I can find nothing on the web
about the unit. It has a switch and a dial but no idea what the switch
and the dial do.
I would greatly appreciate some tips from on how to solve them
Julian
************************************************
Julian Adams
Department of Molecular, Cellular and Developmental Biology
University of Michigan
830 N. University, Ann Arbor MI 48109-1048
Tel. (734)-763-3431; Fax (734)-647-0884; Cell (734)-239-3627
E-mail julian at umich.edu
************************************************
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