Casita refrigerator needs 12 volts - Fiberglass RV


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Old 11-29-2012, 07:03 PM   #1
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Casita refrigerator needs 12 volts

How long will the battery last with an automatic refer? I understand it takes 12 volts even when operating on propane. My old manual refer needed no electricity when operating on propane. This one does.
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Old 11-29-2012, 07:18 PM   #2
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your refer manual should tell you the amount of 12v draw, which should be minimal
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Old 11-29-2012, 07:27 PM   #3
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It uses no electricity when on operating on propane.
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Old 11-29-2012, 07:31 PM   #4
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Hi Jim. I hope it is minimal. I have moved from an older scamp to a newer casita. My scamp never had any battery issues and hoping I didn't make a mistake. I may miss the simplicity.
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Old 11-29-2012, 07:33 PM   #5
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Hi John. As I understand automatic refers have a solenoid which must be held open with 12 volts. This is my concern.
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Old 11-29-2012, 07:34 PM   #6
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Some 3 way refrigerators ,with automatic fuel selection and/or LP igniters, require 12 VDC to operate on LP gas. Unless we select OFF, the 2 door Norcold in our 2013 Coleman pulls about 1.3 amps all of the time, more when the door is open and the light is on.
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Old 11-29-2012, 07:40 PM   #7
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Hi Bob. How does this affect your battery life? I'm concern about boondocking with this type of refer. Was never an issue with the manual type.
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Old 11-29-2012, 07:43 PM   #8
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Most of the new fridges require 12v to operate the control board. If you boondock a lot you may have to install solar to keep up. I also think this is bs but it the price we pay for automatic controls. It used to be a Norcold issue but after shopping for new fridges I noticed that Dometic started doing this also.
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Old 11-29-2012, 07:48 PM   #9
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Thanks Steve. Yeah, I'd rather have the old manual one. Now I'm bummed.
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Old 11-29-2012, 07:52 PM   #10
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So, what does 1.3 amps mean for battery life? Can I boondock for a week? With LEDs and conserving it was possible with the scamp.
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Old 11-29-2012, 07:53 PM   #11
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About 1 amp is 24 amp/hours a day, about 1/5th of the batteries available charge. But, if you have a smaller fridge it might be less and/or it may have an over ride We just bought this one for the grandkids to use and have only been out in in one time. It will mostly be used with hook-ups anyway. But let me tell you that is one heck of a fridge/freezer. It starts getting real cold in about 30 minutes and will keep 2.5 gallons of ice cream frozen on elect. or gas.
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Old 11-29-2012, 08:02 PM   #12
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Thanks everyone for your help. I'll let you know how this works.
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Old 11-29-2012, 09:18 PM   #13
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I was advised by a solar dealer that my fridge control in my 2007 Casita uses approximately .5 amp per hour or 12 amps in 24 hours.

For my typical usage, this is the biggest drain on my batteries when boondocking. Furnace and water pump when in use, use more amps but don't run 24 hours a day.

Replacement of exisiting lights with LED lights is a must for serious boondocking.

If you have the standard Group 24 battery you probably have around an 85 amp hour battery.

Add up your estimated amp hour usage of your systems and you can get a rough idea on how long you can boondock.

You should target not using up more than 50% of your battery's capacity. Using more than that over a prolonged period will seriously reduce your battery's life.

Consider the use of solar and or a generator to recharge your battery each day.
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Old 11-29-2012, 09:59 PM   #14
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Thanks Rob.

Sounds like I need a second battery. Anyone done this on a 17 sd casita?
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