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Old 08-30-2010, 01:43 PM   #1
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1975 31' Excella 500
Beggs , Oklahoma
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stupid question bout lights from the new girl....

My all lights are running off the battery and not off electric in my 75 Excella (still working on her name)... at some point in her lifetime, someone took out the fuse panel for the battery and straight wired her, I have the panel and have the wireing on my to do list, lol...

My question is, did the lights just run off the battery or both??? Oh and... does the battery recharge it's self???

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Old 08-30-2010, 02:16 PM   #2
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Ellen I think what you mean by fuse panel is the old UNIVOLT Converter. All your lighting,fans,furnace fan,water pump etc are 12VDC which is supplied from the battery or from the converter when plugged into shore power. The converter changes shore power(110VAC) to battery power(12VDC). The converter recharges the battery when plugged in to shore power. Your tow vehicle should also be wired to recharge the trailer battery while driving using your cars alternator. This connection is through the 7 pin harness in the front of the trailer.Not all vehicles are equipped with a charge line so make sure yours has it. If you had abattery that would recharge itself you would be a multimillionaire because you would have invented perpetual energy. I hope this clears things up a little.

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Old 08-30-2010, 02:27 PM   #3
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Hello Ellen,

Unless someone changed things before you took ownership, your lights run off the 12-volt system. This is one of the battery functions along with the water pump, stereo, etc. The rig also came with a Univolt that charges the battery when you're plugged into shore power. Ours is located under the kitchen counter and can be easily located by following the "Buzz" it makes.

Yours may have been replaced, or you system somehow modified. You might consider posting some pictures to show what your setup looks like. Plenty of experienced members here willing to share their advice and experience.



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Old 08-30-2010, 03:13 PM   #4
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1975 31' Excella 500
Beggs , Oklahoma
Join Date: Aug 2010
Posts: 10
Thanks guys...

and yes I knew the battery didn't recharge it's self, poor choice of words on my part, LOL... right now it looks like a bad cast of dreadlocks under my kitchen sink, not sure what they did...

as luck would have it we sold our 3/4 ton truck with tow pk. back in June, so not sure if the 7 pin works yet... what does the Univolt look like, hubby probably knows but I don't... haven't noticed any buzzing, so guessing mine's gone... I do have the lady hooked up to my house to run the refrigerator, been using the lights and radio off the battery as I clean her up, battery hasn't lost it's charge and it's been a week..
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Old 08-30-2010, 03:18 PM   #5
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The first photo in this thread shows an original Univolt in my Excella. It is under the front sofa between the batteries.
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Old 08-30-2010, 03:33 PM   #6
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Ellen Dreadlocks under the sink. Maybe you have just found a name for her MARLEY.LOL. If your 75 is the same as mine the univolt was under the oven next to the sink. I would look for a newer converter installed there because if you have been using the lights and radio for a week something is keeping up the battery charge. look at the link in Vaughns post to see what a new one looks like. Happy hunting
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Old 08-30-2010, 04:20 PM   #7
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Right now my 1976 31' Sovereign center bath is sitting with the battery removed, plugged into shore power, and all the 12 volt stuff works. My trailer has three electrical systems, the 110/120 volt, the 12 volt interior circuit, and the 12 volt exterior lights and brake circuit. My fuse panel for the 12 volt interior lights is located inside the sliding door panel under the kitchen range, just inside the walk door. My fuse panel for the 7-way plug (as replaced) is now located under the access cover for the 7-way plug in the front inside.


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