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Old 01-27-2013, 06:07 PM   #1
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1961 26' Overlander
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12 volt yes or no?

I have question about the 12v stuff. I have a 1961 Overlander. I don't know if any of the 12v stuff works or not. I do have the wires going into the battery box, so that's good. What are the advantages of 12v? I don't plan on camping without shore power so should I mess with it? I do have an inverter that I snatched out of my old pop up camper if I need it.
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Old 01-27-2013, 06:30 PM   #2
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The following are 12 Volt in your Overlander:
1. All lights
2. Furnace
3. Water pump
4. Electric tongue jack if you have one

Even when camping with shore power (120 volt AC), the foregoing are 12 volt DC.
That's what the "converter" does. It coverts 120 volt AC to 12 volt DC. (An inverter is something else.)
Suggest you get quickly get up to speed on basic electricity. Lots of good reading material out there.
All the best!
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Old 01-27-2013, 06:34 PM   #3
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What about Trailer brakes, they run on 12v DC.
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Old 01-27-2013, 06:34 PM   #4
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Quote:
Originally Posted by Cristobal View Post
I have question about the 12v stuff. I have a 1961 Overlander. I don't know if any of the 12v stuff works or not. I do have the wires going into the battery box, so that's good. What are the advantages of 12v? I don't plan on camping without shore power so should I mess with it? I do have an inverter that I snatched out of my old pop up camper if I need it.
If the wiring hasn't been modified since your trailer was manufactured, each of the lights and fan motors is set up to run on either 12v or shore power. The lights do this by having two bulbs -- one 12v and one 120v. The fan motors have a small transformer.

If that setup is still intact then you don't need to do anything with your 12v system unless you plan to use it -- everything could run off the 120v shore power directly.

Most Airstreamers find that having battery (12v) power available is helpful for short stops, loading, and unloading, even if there are no plans to camp without shore power.
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Old 01-27-2013, 06:35 PM   #5
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Quote:
Originally Posted by Alumaholic View Post
The following are 12 Volt in your Overlander:
1. All lights
2. Furnace
3. Water pump
4. Electric tongue jack if you have one

Even when camping with shore power (120 volt AC), the foregoing are 12 volt DC.
That's what the "converter" does. It coverts 120 volt AC to 12 volt DC. (An inverter is something else.)
Suggest you get quickly get up to speed on basic electricity. Lots of good reading material out there.
All the best!
Not in 1961.
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Old 01-27-2013, 06:48 PM   #6
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What about Trailer brakes, they run on 12v DC.
Well that is mostly from the TV, except the required by law breakaway switch.
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Old 01-27-2013, 07:34 PM   #7
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I mean't converter, not inverter.
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Old 01-27-2013, 08:18 PM   #8
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If you want a travel trailer, then yes to 12 VDC.

If you will be happy with a park model, then it doesn't matter.
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Old 01-27-2013, 10:21 PM   #9
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Despite the fact that you currently do not plan to ever be without shore power there might be times when you will not have shore power, even if it's just for a short time no by your choice. If it were me, I'd want to be able to run off 12v, too. It will also be a good thing if you were to decide to sell the rig.
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Old 01-27-2013, 11:16 PM   #10
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To expand on the Trailer Brake issue, mentioned above...

Most States require that trailers with brakes have a system to activate them in case the trailer becomes uncoupled from the Tow Vehicle on the road...

For all AS's equipped with electric activated brakes, the installed 12volt battery (s) in the trailer provides the current (through the break-a-way switch on the tongue) to activate your brakes - in case it parts with the tow vehicle...Ooooops

Even if you were to gut the trailer of all it's other 12 volt applications, you'll still need a 12 volt battery (of a size to provide enough current to apply the brakes) for the break-a-way circuit...

Happy trails...
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