Forum Discussion

dig4gold's avatar
dig4gold
Explorer
May 11, 2020

Battery wiring ???'s

Installed a new battery and forgot what all the wires are. I'm betting red is hot and black is ground . . . but not sure about the small wires, one black one white coming out of the holes above battery compartment. I check continuity with multi tester, and am confident in all but that small white wire I have connected to positive. Any idea? Any glaring mistakes?
  • Bobbo's avatar
    Bobbo
    Explorer II
    May 12, 2020
    enblethen wrote:
    I would suggest marking the ground wires with black tape and the positive wires with red tape.

    I prefer green tape for ground. Black can be positive or negative under different systems/circumstances. Green is ALWAYS ground.
  • Lwiddis's avatar
    Lwiddis
    Explorer II
    May 11, 2020
    Cell phones with cameras...I dont touch nuttin until I take a picture.
  • otrfun's avatar
    otrfun
    Explorer II
    May 11, 2020
    With the crazy wiring I've seen on a number of TT's, I wouldn't assume anything. I'd verify whether a given battery lead is pos or neg by verifying the correct polarity (with an ohmmeter) to at least 2, 12vdc devices before I hooked up anything. Wrong polarity on a TT can wreck a perfectly good day.
  • enblethen's avatar
    enblethen
    Nomad
    May 11, 2020
    I would suggest marking the ground wires with black tape and the positive wires with red tape.
  • 2oldman's avatar
    2oldman
    Explorer II
    May 11, 2020
    It's amazing what you think you can remember, but cannot.
  • BFL13's avatar
    BFL13
    Explorer II
    May 11, 2020
    With DC

    Black and white--black pos, white neg
    Red and black-- red pos, black neg
    Red and white--red pos , white neg

    With AC 120v

    Black and white--black hot, white neutral

About Technical Issues

Having RV issues? Connect with others who have been in your shoes.24,201 PostsLatest Activity: Feb 19, 2025