Jumping a car battery is something that every driver should know how to do. After all, it’s easy to forget to turn off the headlights or leave the interior light on, and before you know it, your car won't start. One of the most important things to remember when jumping a battery is the order in which you attach the cables. In this article, we’ll discuss which cable goes on first and why it’s important to follow the correct order.
What You’ll Need to Jump a Battery
Before we discuss the correct order in which to attach the cables, it’s important to understand what you’ll need to jump a battery. First, you’ll need a set of jumper cables. These are typically red and black and are available at most auto parts stores. You’ll also need another vehicle with a working battery. Finally, you’ll need a basic understanding of how to attach the cables.
It’s important to note that not all batteries are the same. Some batteries require special handling or charging procedures, so it’s always a good idea to check your owner’s manual before attempting to jump your battery.
Which Cable Goes on First?
Step One: Attach the Positive Cable
The first cable you attach when jumping a battery is the positive cable, also known as the red cable. Begin by connecting the positive cable to the positive terminal on the dead battery. You can identify the positive terminal by the “+” symbol on the battery. Once the positive cable is securely attached to the dead battery, attach the other end of the positive cable to the positive terminal on the working battery.
Step Two: Attach the Negative Cable
The second cable you attach is the negative cable, also known as the black cable. Begin by connecting the negative cable to the negative terminal on the working battery. You can identify the negative terminal by the “-” symbol on the battery. Once the negative cable is securely attached to the working battery, attach the other end of the negative cable to a grounded metal surface on the dead vehicle. This can be any metal surface that is not near the battery, such as a bolt or bracket on the engine block.
Why It’s Important to Follow the Correct Order
The reason it’s important to follow the correct order when jumping a battery is because it can be dangerous to attach the cables in the wrong order. If you attach the negative cable to the dead battery first, it can cause a spark, which could ignite any hydrogen gas that may have built up around the battery. This could cause an explosion or fire.
By attaching the positive cable first, you’re allowing the electrical current to flow through the dead battery and stabilize it before you attach the negative cable. This reduces the risk of a spark and makes it safer to jump your battery.
Conclusion
Jumping a battery is a simple process that can save you a lot of time and money. By following the correct order when attaching the cables, you can make the process safer and reduce the risk of damage to your vehicle. Remember to always check your owner’s manual for specific instructions and handling procedures for your battery.
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