Why do you not connect the negative terminal of the dead battery?
Since the entire engine block is grounded to the negative terminal, the cable need not be connected directly to the dead battery’s negative terminal, and in fact it would be unwise to do so as sparks from the connection (when the circuit is completed) could ignite the battery.Click to see full answer. Also to know…
Since the entire engine block is grounded to the negative terminal, the cable need not be connected directly to the dead battery’s negative terminal, and in fact it would be unwise to do so as sparks from the connection (when the circuit is completed) could ignite the battery.Click to see full answer. Also to know is, why shouldn’t you connect the negative terminal?That’s why it is recommended that you connect the negative jumper cable to the vehicle body and not the negative post of the battery. This is so you can avoid sparks from occurring near the battery where flammable hydrogen gas may be present, resulting in a possible explosion.Furthermore, what happens if you put negative on dead battery? If the battery is offgassing, the spark could ignite those gases causing an explosion. Connecting the negative terminal last prevents that spark from occurring. Since the negative terminal is not connected, a circuit won’t be completed if the wrench touches both the positive terminal and the chassis at the same time. Also Know, can you use the negative battery terminal as a ground? The negative terminal is never called ground. If you connect the positive terminal to the ground, the negative terminal is now at a potential of -1.5 volts. But in case of a battery, you directly connect it to the load.Why don’t you connect the negative when jumping a car?Caution: Don’t 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. Finally, remove the positive cable from the car with the weak battery.
