Positive and negative battery cable are made for a specific connection between a vehicle and the car battery.
Positive and negative car battery cables.
There are also positive and negative cables in the jumper cable set.
I am assuming you are referring to installing a battery not performing a jump start.
Remove the negative and positive jumper cables from the vehicle with the known good battery.
Find the red positive and black negative battery terminals.
It is only a safety issue.
If you first connect the negative cable then when you connect the positive cable there is a chance the wrench will complete a circuit.
Disconnect the cables in the reverse order.
Find the batteries and their terminals.
Then remove the positive cable from the car with the good battery don t touch a grounded part of either car with the clamp of the positive cable.
Second always remove the battery s ground clamp before loosening the positive.
First remove the negative cable from the car you jumped then the negative cable from the car with the good battery.
The positive jumper cable should attach both batteries positive poles while the negative jumper cable attaches the two negative battery poles.
Negative cables bolt directly to the body of the car or engine block positive cables attach to the starter.
The battery will have labels marked with a and a sign.
Remove the positive jumper cable from the vehicle that needed a jumpstart.
If you remove the negative clamp and inadvertently complete a circuit to ground there will be no current flow.
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Sometimes you can attach the negative cable to the negative pole of the donor battery and instead of attaching the other end to the negative pole of the discharged battery clamp it to a metal piece.
Each battery has two metal terminals.
Allow the engine to run for approximately 30 minutes so that the alternator can charge the battery.
The red one is positive the black one is negative.
Positive battery cable is usually red and generally larger is used for providing power to the starter motor and electrical components in a vehicle.