Topic: Positive versus negative battery cables
in Forum: C3 Electrical

Red=positive/hot. Black =negative/ground. Black is bolted to the body.

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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.
Joel Adams
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Take an ohmmeter and measure each one to the frame. The one that measures the lowest is the ground cable.
1973 L-82 4 spd