Do you want to know how to use jumper cables? What could be worse than coming out of a long day of work and finding that your car’s battery is dead? Maybe you forgot to turn off a light inside, or maybe your battery is just dead. Either way, car batteries usually don’t show problems until it’s too late, at which point your car won’t start.

So, whether your car is old or new, you must have a set of jumper cables that work and know how to use them. First, you have to have the right set of cables. When you need them, any set is better than none at all, but Popular Mechanics suggests getting ones that are 4 to 6 gauge and at least 20 feet (6 meters) long if you are buying new ones.

If you can’t put two cars right next to each other, these extra-long cables will come in handy and make it easier to connect the batteries. Also, look for jumpers with thicker cables and stronger clamps. They will last longer and be stronger. Now we are going to talk about how to use jumper cables. Let’s get into it.

Preparation For Connecting Jumper Cables

Before you go get how to use jumper cables, you should make sure the problem isn’t something more serious. You can start by testing your battery and looking at the cables that connect it to the car. This will help you figure out if the problem is really with the battery or not. You should also check to see if the alternator or its belt is broken. If that is the case, a jump start won’t help for long, but replacing the belt will make your car’s charging system work again. Lastly, if everything else seems fine, make sure your car is completely off, and then look for a suitable booster car.

How to Use Jumper Cables on Your Car?

Jumper cables can get your car running again in just a few minutes if it won’t start. Most of the time, you need two cars to hook up jumper cables. Open the hoods of both cars and connect the red and black clamps to the battery in the one that won’t start. Do the same thing to the other car. Start the car that works and let it run at a slow speed for a minute. Turn on the dead car, disconnect the cables from both cars, and you’re good to go.

Before you start, though, you’ll need to know how to use jumper cables in the right order and what to do if you mess up. Find out how to connect jumper cables and how to figure out what’s going wrong.

How Do You Position the Cars to Jump Your Battery?

How Do You Position the Cars to Jump Your Battery

If the battery in your car is dead, you can jump-start it with a second car. Bring up the car that isn’t working so that the hoods of the two cars are only a few inches apart. Make sure to give them some room. The cars should be close enough to each other so that the jumper cables can reach between them, but not so close that they touch.

For the best results, the voltage of the two-car batteries should be about the same. Read the information on the top of the batteries to see if the numbers are the same or close. If the working car has a much higher voltage than the other car, jumping the batteries could hurt the other car. In that case, you might want to ask another driver to help.

How Do You Connect The Jumper Cables?

How Do You Connect The Jumper Cables

How to use jumper cables in a safe and correct way? The steps are easy to follow and won’t take more than a couple of minutes. After you’ve checked to see if any of the batteries are corroded, untangle your jumper cables. First, take the positive cable and connect the positive ends of both batteries. Then, connect the negative (black) cable to the negative end of the booster car and a metal part of your own car that is grounded, like the engine block. The next step is to try to jump-start your car.

Jumping a Dead Car Battery

If your car won’t start because the battery is dead, all you need is another car and the cables to connect them. Keep a set of jumper cables in your car at all times in case you or someone else needs a boost. Once you have both of these things, here’s how to jump-start your car:

Bring the Engines Close

First, move the car engine that is working close to yours. Either parallel to your car or facing it is fine, but the engines should be no more than two feet apart.

Shut off Power

Next, turn off both cars.

Connect Positive to Positive

Start by connecting the positive (usually red) clamps of the jumper cables to the positive terminals of your battery. Often, these are marked, but sometimes it’s hard to see them. Make sure you look closely to make sure you’re connecting to the right part of the battery.

Connect Negative to Negative

Connect the jumper cable’s negative (usually black) clamps to the dead battery’s negative terminal. In your car, stick the negative end of the battery to a metal surface that hasn’t been painted.

Safety First

Remember that you should always start with the dead battery when connecting the positive cables to the batteries. If you put power into the cables before they are connected to your battery, you could endanger your safety. If you ever feel uncertain or unsafe, you should call for help instead of putting your safety at risk.

Start the Working Car

Start the vehicle that is working. You can put some gas in the engine and let it run for a couple of minutes to charge the battery.

Start your Car

You can start your car while it’s still hooked up. Give it a minute if it doesn’t start right away, and then try again.

Disconnect the Cables

Carefully unhook the cables in the opposite order of how they were put in the cars. Disconnect the negative cable from your car, then the negative cable from the other car, the positive cable from your car, and finally the positive cable from the other car.

Choosing the Right Jumper Cables

To jump-start a car, you don’t need many tools. First, you have to find a car that works to use as a jump-start. Make sure that both people who own the cars know how to open the hood and find the battery and battery terminals. Most people use jumper cables to jump-start their cars because they are cheap and easy to store.

Jumper cables are usually available in lengths between 10 and 20 feet. Some people think that longer cables are better so that a car with a dead battery doesn’t have to be moved. But even though longer cables are more convenient, they may lose power because the energy has to travel farther. The gauge of the cable tells you how strong it is. The cables are thicker and stronger the lower the gauge number. Jumper cables usually come in a size called “gauge six.”

What Happens When You Put On Battery Cables Wrong?

What Happens When You Put On Battery Cables Wrong

If you don’t know how to use jumper cables correctly, it could cause big problems. Some of the most common problems people have with jumper cables are:

  • Putting the black and red jumper cables in the wrong places: You won’t be able to start the dead car if you connect the jumper cables to the wrong sides of the battery. Make sure that the red cables are always connected to the side of the battery with a plus sign (+).
  • Using a black jumper cable to connect to the dead battery: When you try to start the car, sparks can fly, which could react with or start fires in flammable materials. Always connect the second black wire to a metal part that is already grounded.
  • Not putting one of the jumper cables together: The process won’t work right if one of the jumper cables isn’t in place. If the dead battery still won’t start, make sure all four ends of the jumper cables are connected correctly.

How to Avoid a Dead Battery?

For the alternator to keep the battery’s charge level up, the car needs to be driven often. If you have to leave your car parked for a long time, you might want to use a trickle charger or battery maintainer. These gadgets can charge a dead battery. The better models can charge the battery, which could make it last longer.

AAA says that, depends on how often they are used and the temperature. Most car batteries last between three and five years. When it’s hot, batteries die much faster than when it’s cold.

Banta says that if you don’t want to get stuck. You should take care of and replace your car’s battery regularly. He says that after 2 years if you live in a warm climate. You should test the battery load once a year and after 4 years. If you live in a cold climate. Doing so tests its ability to hold voltage while being used, and the results will tell you when it’s time to start looking for a new one.

It’s better to take care of your battery and replace it when it gets old than to try to get every last start out of it and risk getting stuck.


Don’t forget that your battery charges as you drive. After you get your car started, you might want to take the scenic route to your destination to give the battery time to charge. Even if your battery jumps and charges, the fact that it died in the first place is a sign that you need a new one. You should take your car to a nearby mechanic as soon as you can.

Frequently Asked Questions(FAQs) About How to Use Jumper Cables

What are jumper cables used for?

Jumper cables are insulated wires that are also called jump leads or boost cables. They come in pairs and have alligator clips that are used to connect a car battery to another power source. These can be other cars or batteries with the same voltage as the car that needs to be started.

Can I get jumper cables at gas stations?

Even though you can buy small cables at gas stations, they aren’t always the best choice. This is especially true if you drive an SUV or truck. It’s best to use the thickest cables you can find to make sure they can carry the energy needed to jumpstart your car.

Why do I need heavy-duty jumper cables?

Heavy-duty jumper cables will be thicker and have a higher gauge. Which lets more electricity pass through quickly to jumpstart the car. This makes sure you can jumpstart your car even in the worst situations. Like when it’s cold and your battery is almost dead.

Do I need to turn off my car before disconnecting the jumper cables?

Yes! If your car is running, don’t touch the wires. Before connecting or disconnecting, both the car and the extra source must be turned off. If not, it could damage a car and possibly kill a person with electricity.

Can the battery die be refilled?

Your car’s alternator is meant to keep the battery going, but it can’t bring a dead battery back to life. If your battery dies completely, you can only try to jump it or plug it into a battery charger.

How long will it be driven after the jumping start?

Make sure you drive a car for at least 30 minutes after a successful jumpstart before turning off the machine. It will add enough charges to the battery so that you don’t have to start over.

Can you make your own jumper wires?

Follow these steps to make your own jumper wire: With a tool for cutting wire, cut the wire to the length you need. If you need, say, a 1-inch jumper wire, cut a piece of wire that is at least 1-3/4 inches long. So you have room to strip some insulation off each end.

What gauge wire is best for jumper cables?

With a 10-gauge jumper cable, you could get a low battery to start in mild weather. But it wouldn’t work on a dead battery. So, the 4-gauge cable is recommended because it works well for most situations and needs.

What type of wire is used for jumper cables?

Copper and aluminum that are solid are the best at moving electricity. Even though aluminum jumper cables are often cheaper. Their gauge might not be big enough to work well with bigger cars.

Previous articleDrive Through Car Wash: Everything You Need to Know
Next articleCar Battery Positive and Negative Terminals