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Old 03-21-2018, 07:48 AM   #1
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How long will fridge keep food cold on battery

Hi, I have the 31L5 with the 18plus cubic fridge that runs on electric and gas. I have a 7 to 8 hour ferry ride planned where they will not allow the LPG to be on, so the fridge will need to be off or on electric.

1) Anyone know if the electrical outlet is inverted?

2) If inverted, will the house batteries run the fridge for 8 hours?

3) Should I just run my generator?

Thanks
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Old 03-21-2018, 07:58 AM   #2
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I am guessing you do not have a 3 way fridge that runs off 12 volt and are talking about running the fridge of an invertor? If the fridge was cooled down well and you kept the door closed I wouldn't think you would have a problem. I would have a hard time believing that they would have a problem with a propane fridge but would let you run a generator.
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Old 03-21-2018, 07:58 AM   #3
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What Ferry are you taking? Most will NOT let you run a Genny either! Some will NOT let you be Inside your unit also! Youroo!!
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Old 03-21-2018, 08:01 AM   #4
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The ferry is from Sydney to Newfoundland, and they want the LPG turned off at the tank. You do not have access to the unit for the duration of the trip.
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Old 03-21-2018, 08:32 AM   #5
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since you won't be opening/closing the fridge during transit, fill some extra milk jugs and freeze them. That will help keep your stuff cool enough without having to run anything.
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Old 03-21-2018, 08:37 AM   #6
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If some of the items you will be carrying in the fridge can be frozen, ( ie meat, water, ) freeze them before adding to fridge. The more cold items in the fridge the longer it will last. If it is not opened and everything is cold you should be OK.
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Old 03-21-2018, 08:45 AM   #7
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My residential fridge will run for a couple days on battery power(4x6v), if not opened and nothing else on. You should be fine for 7-8 hours.
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Old 03-21-2018, 09:01 AM   #8
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Quote:
Originally Posted by sleepybadger View Post
since you won't be opening/closing the fridge during transit, fill some extra milk jugs and freeze them. That will help keep your stuff cool enough without having to run anything.
x2
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Old 03-21-2018, 09:12 AM   #9
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I was discussing the merits of a residential fridge VS the RV fridge with two fellow campers last year. One was service manager for an RV dealer in MI the other camper owned an RV fridge and my unit had a residential fridge. He stated that a residential fridge without any power and with cold food in the unit will keep food for up to 3 or 4 days depending on how often the door is opened. Were as a RV fridge would only keep food cold for 2 days at the most. Why less insulation in the RV fridge and the efficiency of the cooling process that is use to operate the refrigeration for the cooling.

This was his reasoning for this statement.

I have driven for and up to 8 hours with the inverter off and no power to the residential fridge. The food was still cold and the temperature gage was still under 40F in the fridge. This occurred a couple of times when we started using the trailer for the first year. Turning on the inverter is now on our check list to insure that this is turned on when we break down for travel.
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Old 03-21-2018, 12:29 PM   #10
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Ferry Crosing

We have crossed the ferry and know others we have just shut the propane off turned the fridge off and never had a problem. Fridge was still cold when we got to NFL. Also enjoy your selves there, it is a great place to visit, and we ar planning on going back in 19.
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