While car batteries technically have the amperage to kill you the voltage is a different story.
Positive and negative car battery terminals.
It is usually color coded black.
Sunmorn battery terminal connector 0 4 8 10 gauge heavy duty amp car battery terminals connectors shims positive negative with special tools 1 pair 4 4 out of 5 stars 337 14 99 14.
Find the batteries and their terminals.
Here s how it s done.
Jump starting a vehicle with a set of jumper cables is pretty easy.
It is only a safety issue.
The good battery should have the positive jumper cable attached to the positive battery terminal and the negative jumper cable attached to the negative battery terminal.
The negative terminal of a battery is connected to the chassis of the car and as a consequence it is grounded.
One is marked positive the other negative.
And of course always reconnect the ground last.
If you first connect the negative cable then when you connect the positive cable there is a chance the wrench will complete a circuit.
Subsequent shorting of the positive terminal to ground will then produce no current flow because the current has no return path to the negative post.
When disconnecting a battery the negative terminal is disconnected first to cut off the circuit and avoid a short.
Sunmorn battery terminal connector 0 4 8 10 gauge heavy duty amp car battery terminals connectors shims positive negative with special tools 1 pair 4 4 out of 5 stars 306 14 99 14.
I am assuming you are referring to installing a battery not performing a jump start.
The grounded terminal connects to a grounded source on the vehicle.
The red one is positive the black one is negative.
The other terminal is positive usually color coded red or orange and marked with a plus sign.
That is why the negative terminal is called the ground terminal.
Never connect the red cable to the negative battery terminal or a vehicle with a dead.
The math can get a little complicated but the main reason that you can safely touch the positive and negative terminals of a typical car battery and walk away unscathed has to do with the voltage of the battery.