How to Connect Jumper Cables Between Cars?

1 Answers
ReaganRose
07/30/25 3:53am
Here is the correct method for jump-starting a car: 1. First, ensure the auxiliary battery is 12V and its negative terminal is grounded. Of course, we should also turn off all unnecessary lights and accessories to prevent electrical accidents. 2. Connect the cables correctly, making sure not to reverse the positive and negative terminals. Otherwise, sparks may fly when connecting. Additionally, ensure the cables are tightly wrapped around the battery terminals (for full contact) to avoid sparking during the jump-start process. 3. Start the engine of the car with the auxiliary battery and let it run at medium speed. Then, start the engine of the car with the depleted battery. 4. Finally, disconnect the cables in the exact reverse order of connection.
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