Never connect the black cable to the negative (–) terminal on your dead battery. This is very dangerous, could result in a possible explosion. Make sure you follow the instructions in your owners manual when jumpstarting your vehicle. Every car is different.
Why shouldnt you connect the negative jumper cable to the negative battery terminal?
Caution: Dont attach the negative cable to the negative terminal of the weak battery when jumping a car battery! This common mistake could ignite hydrogen gas directly over the battery. Battery explosions can cause serious injury.
What happens if you jumpstart a car with the cables backwards?
Fuses (and/or fusible links) act as circuit protection devices between the battery and the vehicles electrical system. Connecting the jumper cables backwards will often result in one or more blown fuses. The affected circuit will not function correctly until the blown fuse is replaced.
Can you touch negative car battery terminal?
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. Be careful though, as not all car batteries are 12V.
What happens if you connect a car battery negative first?
Getting to our question, Always while connecting the cables to a car battery, connect the positive terminal first, then the negative and the ground. If you connect negative first, there are chances of short-circuiting. Note that, Red cable is positive (+) and Black cable is negative (-).
Do I connect the negative or positive first?
“Positive first, then negative. When disconnecting the cables from the old battery, disconnect the negative first, then the positive. Connect the new battery in the reverse order, positive then negative.”
What happens if you connect negative to negative?
Never connect the black cable to the negative (–) terminal on your dead battery. This is very dangerous, could result in a possible explosion. Make sure you follow the instructions in your owners manual when jumpstarting your vehicle.