[C320-list] Protecting The Batteries when away from boat at dock

[bruceheyman]

I believe that cut out is to save the compressor....the batteries (and the food) are already toast.  Compressors will overheat and draw too much current if the voltage gets too low.
Bruce


Bruce Heyman
949-289-8400


-------- Original message --------
From: guyhenry222 at gmail.com 
Date:07/04/2014  9:25 AM  (GMT-08:00) 
To: c320-list at catalina320.com 
Subject: Re: [C320-list] Protecting The Batteries when away from boat at dock 

The Adler/Barbour fridge on my 1994 automatically cuts out if the voltage 
goes under 10.4V

Guy
MoonShadow
#115


-----Original Message----- 
From: Ken Geiger
Sent: Thursday, July 03, 2014 4:55 PM
To: c320-list at catalina320.com
Subject: [C320-list] Protecting The Batteries when away from boat at dock

In the Flooded Battery Thread, Warren mentioned a devise to sense low 
battery and then disconnect the load (the reefer).
  I quote;

"For those who leave refer running while away from boat, there is a device
that will sense State of Charge and disconnect a load (refer.) This avoids
running a good battery into the ground (below 11 V) should shore power be
lost (a sure way to shorten your battery's life.) Jeff Hare can say more
about this device."

I wonder if one could protect the batteries while leaving the reefer on when 
at dock and away, by paralleling in a
110 V relay coil with the parallel 12 V to the reefer on a set of contacts. 
The coil would drop out and open the
power supply to the reefer upon AC power loss thus prevent draining the 
battery.

The Reefer switch on the panel would be in the off position and the battery 
main switch on, supplying the
parallel 12 V circuit to the reefer through the relay contacts.

Ken Geiger
Northern Dream, 2000 #765