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Old 06-03-2010, 07:27 PM   #1
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1977 25' Tradewind
Prince George , Virginia
Join Date: Jan 2010
Posts: 4
Need Help with 12volt lights

I have replaced our battery and now it is dead..We have a 1978 Tradewind Landyacht 25 foot with rear bath..I am trying to find out if the lights are susposed to run off 12 volt and elect when it is pluged up to elect.our elect panel is located in the bathroom closet..and the 12 volt is behind the couch in living room..all fuses look good but the battery keeps going dead..the battery went dead after about 6 hours but there wasnt a light on when we left the trailer.Could someone please help me?We do not know anything about this Airstream.. but I am trying to learn..we have it set up in a camground and go every week to stay in it..

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Old 06-03-2010, 07:42 PM   #2
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1958 26' Overlander
Mesa , Arizona
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Your trailer lights all run on 12v.

It sounds like your battery isn't charging while you're trailer is plugged in. You have either a univolt or some other charger in your Airstream. Check to see if it's working. If it's not, it's either dead or it's not getting power from the main fuse panel. You can check this by simply checking the univolt/charger output to the battery with a voltmeter. It should be reading about 14volts while charging.

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Old 06-04-2010, 11:36 AM   #3
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1977 25' Tradewind
Prince George , Virginia
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Thank you

Thank you for the help we will try this on the weekend..
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Old 06-06-2010, 05:41 PM   #4
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1965 17' Caravel
Birmingham , Alabama
Join Date: Oct 2007
Posts: 173
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You need a test lamp.

Take a 12 volt tail light bulb and solder a wire on the side and on the bottom connection. Then solder alligator clips to the wires. Then hook this between the battery and one battery cable. If everything is off, the light will be off. If the light is on, go around and explore the trailer to find out what is using power. You can use a volt meter for this but you can see the light easier from far away.

Good luck!
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