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dig4gold

Cheyoming

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Posted: 05/11/20 03:36pm Link  |  Quote  |  Print  |  Notify Moderator

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?
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* This post was edited 05/11/20 03:46pm by dig4gold *

BFL13

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Posted: 05/11/20 03:47pm Link  |  Quote  |  Print  |  Notify Moderator

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


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2oldman

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Posted: 05/11/20 04:16pm Link  |  Quote  |  Print  |  Notify Moderator

It's amazing what you think you can remember, but cannot.

enblethen

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Posted: 05/11/20 04:34pm Link  |  Quote  |  Print  |  Notify Moderator

I would suggest marking the ground wires with black tape and the positive wires with red tape.


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Posted: 05/11/20 05:06pm Link  |  Quote  |  Print  |  Notify Moderator

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.

Lwiddis

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Posted: 05/11/20 05:22pm Link  |  Quote  |  Print  |  Notify Moderator

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Posted: 05/11/20 06:15pm Link  |  Quote  |  Print  |  Notify Moderator

"CLICK"

Lwiddis

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Posted: 05/11/20 06:16pm Link  |  Quote  |  Print  |  Notify Moderator

“CLUCK”

Bobbo

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Posted: 05/11/20 07:58pm Link  |  Quote  |  Print  |  Notify Moderator

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.


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BFL13

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Posted: 05/11/20 08:25pm Link  |  Quote  |  Print  |  Notify Moderator

Bobbo wrote:

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.


Green is ground with 120v, but could be positive with DC 12v. Eg 7-pin wire, and ISTR it was positive to the battery in somebody's RV a while back too. Can't remember the trailer's brand.

Not sure "ground" is correct with DC either, but we use it with our negative grounded RVs.

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