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From: S/V Pilgrim (no email)
Date: Thu Dec 30 2004 - 21:03:50 EST
Robert
Couple of things
> Today, I noticed that the Heart Interface Remote
> Panel was showing "Overcharge".
Implies that the monitoring system has detected a problem ... What does
the manual say about the term "overcharge" .. it could mean any number
of things
I started to investigate, and here's
> what I found out:
>
> 1. I turned off EVERTHING DC-related at
> the boat's electrical control panel. Still showed that it was drawing
> 60 DC Amps!!!
If there is a draw it is not via the panel .. what is directly wired to
the battery?
> 2. I turned OFF the house bank of batteries.and remote panel
> dropped to a normal 10 DC Amps.
What is taking 10 Ampers DC? That means you have an unexplained 50
Ampers draw..
> 3. The house bank, turned off, shows 12 volts as expected.
12 VDC is a bit low for a fully charged house battery ... sounds as if
the house batteries have a problem (are you running parallel 12 V
batteries or series/parallel 6 volt golf cart batteries?). test each
cell for the correct SG. Check the connections while you are in there.
> 4. The starter battery is showing 13.2 volts or so (which is normal
> when it's charging)
When it is charged .. when charging it should be higher.. 13.2 is the
float voltage.
>
It seems to me that there's a short somewhere.
Sounds great .. now what's smoking? That kind of power draw will cause a
lot of heat unless it is a bad monitor or your battery bank is trying to
charge.
If you turn off the charger what current is being drawn by the house?
Could it be that you are running something on DC that is not wired to
the panel? I assume you have a Link 10 or some other Amp/Hour meter
installed that would allow you to monitor battery draw independent of
the charger.
You may have a dead cell in one of your house batteries.. the only way
to find it is to check each cell with a hydrometer ..
-- Brian S/V Pilgrim Whitby 42 #304 ___________________________________________________________________________ || The Live-Aboard List : send a "subscribe" or "unsubscribe" request || || in body of message to: ||
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