Help. Which Battery Post to Connect White, Black & Green Wires

Discussion in 'Wiring' started by ccombs0708, Oct 19, 2021.

  1. ccombs0708

    ccombs0708 New Member

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    Just picked up a used pop up. Bought a new battery. Three wires near battery for connecting. White wire has a battery post connector. Black wire has a battery post connector, but the green wire is just cut without a connector. Which battery posts do I connect each wire to?
     
  2. PopUpSteve

    PopUpSteve Administrator

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    Need to know Make/Model/Year of your camper.
     
  3. ccombs0708

    ccombs0708 New Member

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    1999 Jayco Eagle. Model info stickers are worn off and the model is not on my title. It’s a basic 1999 Jayco Eagle small pop up camper.
     
    Last edited: Oct 19, 2021
  4. tombiasi

    tombiasi Well-Known Member

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    Where does it go?
     
  5. ccombs0708

    ccombs0708 New Member

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    What do you mean?
     
  6. Anthony Hitchings

    Anthony Hitchings Well-Known Member

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    from memory:

    Black = +ve
    White = negative
    Green = mystery wire - you need to trace it back to it's origin
     
  7. tombiasi

    tombiasi Well-Known Member

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    You need to find the other end of the wire.
     
  8. ccombs0708

    ccombs0708 New Member

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    Generally speaking, on most pop up campers (minus a wire harness or plug of some sort), isn’t the white hot/positive and black negative?
     
  9. ccombs0708

    ccombs0708 New Member

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    Or is it the opposite of that? Black positive and white negative?
     
  10. ccombs0708

    ccombs0708 New Member

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    Thanks Anthony. Previous owner didn’t have green connected to anything. Must not be important enough.
     
  11. tombiasi

    tombiasi Well-Known Member

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    Black is positive white is negative.
     
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  12. ccombs0708

    ccombs0708 New Member

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    Thanks. Just to confirm. I connect large thick wire that is connected to frame to negative battery post, then white on top of that, then black to positive?
     
  13. tombiasi

    tombiasi Well-Known Member

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    yes
     
  14. ccombs0708

    ccombs0708 New Member

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    Anyone have a guess as to what the green wire is for?
     
  15. tombiasi

    tombiasi Well-Known Member

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    Guessing is not the way. As was suggested several times, trace it.
     
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  16. ccombs0708

    ccombs0708 New Member

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    Will do.
     
  17. Arruba

    Arruba Well-Known Member Gold Supporting Member

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    Tracing your wiring is a good idea as the wire you describe IMO isn’t commonly used 12 volt circuit wire. What I gather from your description is it’s 110 volt ac appliance wire, that’s why you have a green wire. In a 110 application, black is hot or positive, white is neutral, and green is ground. In my experience a 12 volt system should be black positive and white ground. I’m hesitant to say that’s standard because for example my old Viking uses red and black wiring throughout the interior. The point is check where/what it connects to so you don’t inadvertently cross wire the connection if someone wired it to non standard. Don’t be surprised to find the green wire doesn’t connect to anything on either end because in your RV application it’s not needed.

    Good luck
     
    Last edited: Oct 20, 2021
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  18. SteveP

    SteveP Well-Known Member Platinum Supporting Member

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    Something a previous owner added. If it has a fuse it probably goes to the positive pole, but I wouldn't hook it up until I know what is on the other end.
     
  19. Susan Premo

    Susan Premo Well-Known Member

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    After you have it all fixed up, take a picture, that's we we did, it sure helped us out.
     
  20. tombiasi

    tombiasi Well-Known Member

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    Absolutely do not hook it up until you know where it goes.
     

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