
How to Jump Start a Car with Cables: A Step-by-Step Guide
Which Cable Do You Connect First When Jump Starting a Car?
When jump starting a car with cables, it’s crucial to connect the cables in the correct order to avoid any damage to the vehicles or electrical systems. Follow these steps:
- Red Cable: Start by connecting one end of the red cable to the positive (+) terminal of the dead battery.
- Red Cable: Attach the other end of the red cable to the positive (+) terminal of the working battery.
- Black Cable: Connect one end of the black cable to the negative (-) terminal of the working battery.
- Black Cable: Finally, connect the other end of the black cable to an unpainted metal surface on the engine block of the car with the dead battery. Avoid the battery itself and any moving parts.
What Order Do Jumper Leads Connect?

To ensure a successful jump start, it’s important to follow the correct order when connecting jumper leads. Here’s the proper sequence:
- Positive to Positive: Connect the positive (+) terminal of the dead battery to the positive (+) terminal of the working battery using the red jumper cable.
- Negative to Negative: Connect the negative (-) terminal of the working battery to an unpainted metal surface on the engine block of the car with the dead battery using the black jumper cable.
How Do You Start a Car with a Dead Battery Using Cables

Once the cables are properly connected, follow these steps to start a car with a dead battery:
- Start the Engine: Start the engine of the car with the working battery and let it run for a few minutes.
- Rev the Engine: Rev the engine slightly to increase the charging output.
- Start the Dead Car: Attempt to start the car with the dead battery. If it doesn’t start, wait a few more minutes and try again.
- Disconnect the Cables: Once the dead car starts, carefully disconnect the jumper cables in reverse order (black from the engine block, black from the working battery, red from the working battery, and finally red from the dead battery).
How Long Do You Have to Leave Jumper Cables on a Dead Battery?
After jump starting a car, it’s recommended to leave the jumper cables connected for a few minutes to allow the dead battery to charge. The exact time can vary depending on the condition of the battery and the charging output. Typically, leaving the cables connected for around 5 to 10 minutes is sufficient.
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Knowing how to jump start a car with cables is a valuable skill that can save you from being stranded with a dead battery. By following the correct cable connection order, allowing sufficient charging time, and using on Pageads.co.uk to find used car batteries, you can confidently handle unexpected battery failures and get back on the road quickly.