Question: Which battery terminal do I connect 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.”

Do you disconnect ground wire first?

The grounded terminal should be disconnected first to ensure that a battery dead-short does not occur, should the spanner disconnecting the other one contact a nearby grounded metal part. A battery dead-short will result in short circuit currents of the order of hundreds of amperes and heavy sparks.

Which terminal on a car battery is positive?

STEP 3: Find the Red (Positive) and Black (Negative) Battery Terminals. Find the batteries and their terminals. Each battery has two metal terminals. One is marked positive (+), the other negative (-).

Can you connect the negative cable to the dead battery?

Quick Tips: Jumping a Battery Never connect the black cable to the negative (–) terminal on your dead battery. This is very dangerous, as it could result in an explosion.

What happens if you connect the negative terminals?

Quick Tip: 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.

Do I hook up red or black first when jumping a car?

Connect the clamp on the red jumper cable to the positive terminal on your car battery, and the black one to either an unpainted piece of metal in the engine or directly to your cars chassis (the frame of the vehicle). Dont attach the negative (black) clamp to the negative terminal of the dead battery.

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