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Old 08-20-2013, 05:51 PM   #1
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What does the white wire on battery control. I know the other wires on the other terminal control my power jack and carbon monoxide detector.

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Also what type of battery disconnect switch do you use?

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Old 08-20-2013, 05:55 PM   #2
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Ground wire to frame.

2007 Chevy 2500 HD 6.6
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Old 08-20-2013, 05:57 PM   #3
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The white wire looks to be your negative lead.
The black and the red are both positive leads, one likely goes to your power tongue jack directly and the other is your main 12V hot lead to the power distribution center inside the camper. Your CO detector is connected to that power distribution center along with all your other 12V accessories. The power distribution center also handles your 120V needs when hooked up to shore power (30amp hookup)

For battery disconnects I like the Blue Sea m-series made for boating applications
2011 A-122
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Old 08-20-2013, 06:15 PM   #4
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Location: Louisville, KY
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Do yourself a favor and get some red vinyl tape and put RED tape on that
black wire that's on your battery +.
You might also label the white wire as - and or ground.

LOTs of folks remove their battery for winter or charging or anti-theft and
one day they put it back and get the wires on backwards.
It's a bad thing to do and nearly always causes various amounts of damage
to electrical stuff in the trailer.

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Old 08-20-2013, 09:09 PM   #5
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+1 on marking the wires.

Follow the wires and look at where they go. That will give you clues to their function.

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Old 08-20-2013, 09:36 PM   #6
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Originally Posted by RascalRv View Post
What does the white wire on battery control.
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