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Old 04-19-2015, 10:43 AM   #11
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Yes, charged batteries will stay charged for quite a while..a month or more. (If they are healthy batteries.) We always plug the trailer into the 110-outlet at the house as soon as we pull up (to load or unload or wash, etc.) and that's the last thing we disconnect before pulling out.

My old camper didn't have a cut-off switch so I would just disconnect the negative (black) terminal from the battery. (It had a wing-nut for this.)

I've heard that we're not supposed to leave the trailer plugged into the truck when parked for long periods because the trailer will draw from the truck batteries. (Not sure that's true but I don't take any chances.)
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Old 04-19-2015, 07:50 PM   #12
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Our 2012 FR travel trailer had a factory battery cut-off switch. It was a chrome plated push-pull switch next to the circuit breaker/fuse panel inside the main living area. It was very convenient for shutting all battery power off when we went hiking, kayaking, or sightseeing. Our 5th wheel's cut-off switch is located in the basement compartment containing the battery and is not nearly as convenient for quickly shutting everything down. So, you might check your trailer for a similar switch before installing a new one.
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Old 04-20-2015, 12:33 AM   #13
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Our ... battery cut-off switch ... was very convenient for shutting all battery power off when we went hiking, kayaking, or sightseeing.
Doesn't that kill the refrigerator, too?



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Old 04-20-2015, 10:29 AM   #14
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Doesn't that kill the refrigerator, too?
Yes, it does.
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Old 04-20-2015, 11:50 AM   #15
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Yes, but we have a sending unit for a wireless indoor-outdoor thermometer in our refrigerator. So we can read the frig temp without opening the door. If the temp inside is 40 degrees or lower, it has been able to maintain it while we are gone. Of course, we have never gone hiking in Death Valley in mid-summer with the switch shut off either. But, if we had, we probably would have had bigger problems than the frig temp to worry about!

That's an unlikely extreme, I'll admit, but we have towed with the gas and battery off on summer days without any problems as long as we don't open the frig door while in transit. And, for safety reasons, we don't travel with the gas on--which, if I remember right from our Alaska trip, is actually illegal in Canada.
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Old 04-20-2015, 12:33 PM   #16
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Wow, no wonder people buy generators....I went to the trailer yesterday to work on my plumbing and it was in the 30's....felt even colder inside the camper!

So I turned on the battery and plugged in the little space heater...NOTHING....gesh, the batteries can't even run that thing?
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Old 04-20-2015, 12:41 PM   #17
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Space heater = 120v ac. Battery = 12 v dc. Two different systems. You should have been able to use your LP furnace for a few hours.
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Old 04-20-2015, 12:45 PM   #18
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This should help for amp draws.
normal appliance amp draws

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Old 04-20-2015, 01:05 PM   #19
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Quote:
Originally Posted by ColoradoRick View Post
Wow, no wonder people buy generators....I went to the trailer yesterday to work on my plumbing and it was in the 30's....felt even colder inside the camper!

So I turned on the battery and plugged in the little space heater...NOTHING....gesh, the batteries can't even run that thing?
Suggest you read up on "the 12 volt Side of Life" website.
Your battery won't run 110vAC items like a space heater.
Nor will the outlets work on battery power.
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