Negative cables bolt directly to the body of the car or engine block positive cables attach to the starter.
Positive and negative car battery cables.
The red one is positive the black one is negative.
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Positive battery cable is usually red and generally larger is used for providing power to the starter motor and electrical components in a vehicle.
Find the red positive and black negative battery 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.
Positive and negative battery cable are made for a specific connection between a vehicle and the car battery.
Remove the positive jumper cable from the vehicle that needed a jumpstart.
It is only a safety issue.
The plus is the positive cable terminal the is the negative.
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.
I am assuming you are referring to installing a battery not performing a jump start.
If you remove the negative clamp and inadvertently complete a circuit to ground there will be no current flow.
The battery will have labels marked with a and a sign.
Find the batteries and their terminals.
First remove the negative cable from the car you jumped then the negative cable from the car with the good battery.
One is marked positive the other negative.
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.
There are also positive and negative cables in the jumper cable set.
Second always remove the battery s ground clamp before loosening the positive.
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Remove the negative and positive jumper cables from the vehicle with the known good battery.