What happens when you disconnect the jumper cables?

I go to disconnect the jumper cables and car dies. I then change the alternator from my friends advice as its gotten some power steering fluid spilled on it and guessed it could have been ruined. The alternator is not charging for some reason. That is why it will run as long as the battery has a charge.

Can a faulty alternator cause a car to shut down?

You could have a faulty alternator. Once you remove the jumpers, if a car shuts down immediately, it’s the alternator, not the battery, battery is primarily for starting the car, not keeping it running. A ways back, my wife had gone through 3 rebuilt alternators before the 4th finally held it own.

Can a car run without a jumper cable?

These vehicles can be jump-started without a battery and will continue to run once jumper cables are removed. A non self-exciting alternator requires 12V power on one lead to stay energized and in operation.

How does a red jumper cable work on a dead battery?

One end of the red (positive) jumper cable connects to the positive terminal of the dead battery. The other end of the red cable connects to the positive terminal of the good battery. One end of the black (negative) jumper cable connects to the negative battery terminal of the good battery.

How does a jumper cable work on a car?

Jump starting your car with jumper cables is pretty straight forward. Simply connect like poles together. The positive jumper cable should attach both batteries’ positive poles while the negative jumper cable attaches the two negative battery poles.

Where are the clamps on a jumper cable?

Typically, jumper cables (also known as jump leads), come in a set of two wires with a copper clamp at each end. The clamps are assigned to either the negative pole or the positive pole on the battery. This is indicated by a “-” and “+”, respectively.

What happens when you disconnect the jumper cables?