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Old 11-28-2020, 09:00 AM   #1
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12 volt only refrigerator

New member. Just took delivery of a Keystone Cougar, that has a 12 volt only refrigerator. Not familiar with the 12 volt only, have had many dual gas and electric. Any thoughts?
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Old 11-28-2020, 10:21 AM   #2
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Hi ! Welcome to IRV2! We're sure glad you joined us!

Congrats on the new rig! Many folks are converting their old AC/propane fridges to either AC only or 12VDC only. I think it will depend on how much boondocking you will be doing and whether you have solar panels. Have fun and keep her between the ditches!

Good luck, happy trails, and God bless!
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Old 11-28-2020, 10:33 AM   #3
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The good is that your ice creme will be frozen, Your beer stays cold, and the milk won't go "blinkie" before it's time..
The could be "not so good" is that with a trlr You will need either a small gen set or solar to keep the batteries charged if puckerbrush boon docking..
[disclaimer.. We full time in a DP, swapped out the propane "wanna-be" and went to a Samsung 18 residential fridge/freezer, and have an onboard gen set] BEST upgrade in many moons.
Note.. We boondock 80% of the time..And My attitude is....so what if I have to run the gennie a couple of extra hours a day...
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Old 11-28-2020, 10:35 AM   #4
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I changed my propane/electric to 12v only. Love it. uses approx. 10amp (DC) so lasts plenty long, even when boondocking. Don't have any solar, just 4 6v batteries for the house. No problems lasting 'til the next gen start.
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Old 11-28-2020, 06:37 PM   #5
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12 volt refrigerator

Thanks for the thoughts. We will carry a generator with us as we usually camp in National Forest Parks, BLM, or State parks.
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Old 01-26-2021, 07:39 PM   #6
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Sir, did you beef up the wire guage and fuse to run the 12v unit. I worry that the standard wiring for a gas/elec would not be that robust.
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I changed my propane/electric to 12v only. Love it. uses approx. 10amp (DC) so lasts plenty long, even when boondocking. Don't have any solar, just 4 6v batteries for the house. No problems lasting 'til the next gen start.
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Old 01-26-2021, 07:48 PM   #7
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New member. Just took delivery of a Keystone Cougar, that has a 12 volt only refrigerator. Not familiar with the 12 volt only, have had many dual gas and electric. Any thoughts?
Welcome to iRV2.

Is this a brand new RV or, a new to you unit that someone added the 12 volt fridge .
If new could you post the model and brand of the fridge .
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Old 01-26-2021, 07:50 PM   #8
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Quote:
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I changed my propane/electric to 12v only. Love it. uses approx. 10amp (DC) so lasts plenty long, even when boondocking. Don't have any solar, just 4 6v batteries for the house. No problems lasting 'til the next gen start.
Steve ; was this a DC compressor conversion of an RV fridge , or a complete replacement ?
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Old 01-27-2021, 08:34 AM   #9
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Steve ; was this a DC compressor conversion of an RV fridge , or a complete replacement ?
Yes it was, original 12?? fridge still in use.
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Old 01-27-2021, 08:41 AM   #10
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Sir, did you beef up the wire guage and fuse to run the 12v unit. I worry that the standard wiring for a gas/elec would not be that robust.
Yes I did. Ran a #12 (could have been #10, can't remember at the moment) directly from the battery with it's own cutoff switch in the battery compartment and a circuit breaker in the fridge compartment. Just wired the compressor to that circuit breaker.

We use a separate ice maker so I just closed the valve to the water hose but it would work on electric (120v) if I wanted to do that.
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Old 01-27-2021, 10:32 AM   #11
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Quote:
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Yes I did. Ran a #12 (could have been #10, can't remember at the moment) directly from the battery with it's own cutoff switch in the battery compartment and a circuit breaker in the fridge compartment. Just wired the compressor to that circuit breaker.

We use a separate ice maker so I just closed the valve to the water hose but it would work on electric (120v) if I wanted to do that.
The circuit breaker belongs near the battery.
Circuit breakers protect wiring, not appliances. They have there own protection.

If that wire you ran, shorts to ground before the fuse, it will melt the insulation off and start burning things.

Remember, the battery stores 1000s of amps in it. A 10 guage wire will glow like a toaster coil.
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Old 01-27-2021, 10:56 PM   #12
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I did not change any wiring yet. This is a 2021 Keystone Cougar 5ver, and they have a “smart converter” produces a flood load then a maint load and then a trickle charge @13.2-4. I need to learn more about the converter before I change out the batteries. The converters come in a variety of amperage, including 35 amp 45 amp, 65 amp etc.. I have wired a 50 amp service on the barn to keep the RV connected so charging has not been a problem and likewise 4 camping trips have gone very smooth regarding the 12 volt refrigerator, and the rest of the unit
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Old 01-27-2021, 10:58 PM   #13
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This is a brand new 2021 keystone Cougar 27SGS 5ver
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Old 01-28-2021, 07:09 AM   #14
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Thank you for that answer. So you converted an existing gas fridge?
Quote:
Originally Posted by Steve43 View Post
Yes I did. Ran a #12 (could have been #10, can't remember at the moment) directly from the battery with it's own cutoff switch in the battery compartment and a circuit breaker in the fridge compartment. Just wired the compressor to that circuit breaker.

We use a separate ice maker so I just closed the valve to the water hose but it would work on electric (120v) if I wanted to do that.
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