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Topic: Positive versus negative battery cables

in Forum: C3 Electrical

Positive versus negative battery cables (1/4)
 9/28/20 4:33pm
fivejah
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Auburn, WA - USA

Vette(s):
1968 Corvette 454ci 4 speed


Joined: 8/8/2020
Posts: 7

This is probably a dumb question, but don't judge.  How can I tell on a 1968 corvette which battery cable is negative and which is the positive cable?

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Re: Positive versus negative battery cables (2/4)
 9/28/20 6:03pm
manchestersharkLifetime Member
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Equinunk, PA - USA

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1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.


Joined: 10/31/2007
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Red=positive/hot.  Black =negative/ground.  Black is bolted to the body. 

Re: Positive versus negative battery cables (3/4)
 9/28/20 9:25pm
Adams' AppleLifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas


Joined: 11/8/2003
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Typically, the battery itself will have a "+"  either stamped or embossed onto the battery by the positive terminal. Same with the negative side, with a "-". If the battery is not in the car, on most Shark era cars, the Positive cable is on the "driver side", and the negative on the "passenger side", of the battery as it sits in the well. Of course, as Mark points out MOST cables or cable ends are color coded, red for positive, and black for negative. If all else fails, you can trace the negative cable from the battery box to right under the driver side seat, as the negative cable goes from the battery directly to frame, under the driver's seat.



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Re: Positive versus negative battery cables (4/4)
 9/29/20 1:44am
73shark
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Overland Park, KS - USA

Vette(s):
1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day.


Joined: 7/9/2003
Posts: 637

Take an ohmmeter and measure each one to the frame.  The one that measures the lowest is the ground cable.



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1973 L-82 4 spd

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