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Old 09-09-2012, 06:17 PM   #1
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Fridge drains battery...

I have a Rockwood A122 A-frame with a dometic fridge. The fridge seems to be draining my battery while on the road (we typically drive 4 to 6 hours away from home and keep the fridge on DC power while driving). Do other folks have a similar issue, or is there a problem with my rig? Since I'm fairly new to this, is it ok to use the propane while driving to keep the fridge cool rather than the DC to save battery power?

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Old 09-09-2012, 06:19 PM   #2
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There is some debate with using propane while traveling. I do travel with the propane on to keep the fridge cold.

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Old 09-09-2012, 06:53 PM   #3
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I have traveled for years with propane on.
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Old 09-09-2012, 06:58 PM   #4
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I would say that there is a problem with the 7 pin plug or wiring. For some reason, power is not getting from the TV to the battery and keeping it charged.
I have to travel with propane on or the fridge will be off. I have a 2 way fridge.
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Old 09-09-2012, 07:15 PM   #5
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We had a 3 way frig in a 72 El Camino slide in and we could run the frig on 12 while traveling, but it would run 2 batteries dead if left on for over 2 hrs. Would even turn it off when we went into a restaurant for lunch, etc.
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Old 09-09-2012, 08:11 PM   #6
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Originally Posted by f1100turbo View Post
I have traveled for years with propane on.
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Old 09-09-2012, 08:28 PM   #7
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yes, i would check your charging lead from the tv.
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Old 09-09-2012, 08:45 PM   #8
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Thanks for all the replies! I had to think for a moment before I realized TV meant tow vehicle and not television! I think the charging line is working ok, I left the fridge off during the drive home and it seemed to charge ok. I'll try driving with the propane on next time and see how it goes.
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Old 09-09-2012, 09:11 PM   #9
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I had at leat 20 warning stickers on my new trailer when I got it. Not a single one about using the propane while driving. It's designed with that in mind. If you want to be extra careful, turn it off at the gas station while you refuel and some tunnels require it to be off before you enter. Other than that, go for it!
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Old 09-10-2012, 06:37 AM   #10
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We ran a poll here awhile back asking simply "do you travel with your
fridge on LP or not".
80% of the poll responders said yes.

You can read some discussion here--
Do you run with your LP on or off

This question comes up often and there are many other threads about it.

We used to have a trailer with a 3 way fridge as you apparently do.
I also found I arrived at my destination with less than a full trailer
battery if I had the fridge on DC operation.
We switched to running with LP on and problem solved.
Now days, very few fridges come with 3 way power and I believe it's cost
saving plus the huge battery drain that's the reason.

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