How to Jump-Start a Car Battery

Every motorist has to have the fundamental ability to jump start a car battery.

Jumping your automobile is not something that is done frequently or at a convenient moment, similar to changing a tire. Jump-starting an automobile just requires a little knowledge and a few easy steps, and it doesn't take long. In a few minutes, you can resume driving.

Jumper cables, often referred to as booster cables, are needed to connect the dead battery in your automobile to a fully charged battery in another vehicle in order to jump start it. A decent pair of cables and other roadside emergency supplies are excellent to carry in your car's trunk.

Learn how to jump start a car with these instructions by reading on.

Steps to Jumping a Car with a Dead Battery

1. Position the Booster Vehicle

First, leave a fully charged vehicle adjacent to the vehicle with the drained battery. The cars may be parked side by side or bumper to bumper. They must be near enough for the batteries to be accessible to the jumper wires.

Remove the keys and turn off the ignitions in both vehicles. Both cars' emergency brakes should be set. All accessories, including the radio, lighting, and climate control, should be turned off.


Under the hood of the majority of gasoline-powered cars are batteries. In other vehicles, the battery is located behind the rear seat or in the trunk. Set the car's excellent battery in the appropriate position. If you don't know where the battery is located, see the owner's handbook.

2. Locate Battery Terminals

To get to the batteries, raise the hoods of the cars. Positive (+) and negative (-) terminals are present on an automobile battery (-). There are occasions when the battery connections are concealed, and remote metal posts are installed for easy access to jump start or boost the battery. A red cap is frequently used to indicate the positive terminal. If needed, consult the vehicle's manual for terminal locations.

The terminals ought to be corrosion-free. Use a wire brush, aluminum foil, or something other than your bare hands to remove the substance if it appears to have covered the posts with a white or greenish substance. Your skin may get itchy from the rust.

If the battery is leaky or damaged, do not try to jump it.

3. Connect Jumper Cables

Jumper cables have two spring-loaded clamps, one red and one black, at each end. Negative posts or grounding are used for negative posts, whereas red clamps secure positive battery connections. The four clamps must be connected firmly and in the proper order. An improper connection may cause property damage or electrical system harm to the vehicle.

While attaching the metal clamps to the batteries, avoid letting them come into contact.


First, secure a red clamp to the DEAD battery's positive terminal.

Next, connect the RED clamp on the other end of the cables to the positive terminal of the BOOST battery.

Next, connect the black clamp to the booster battery's negative terminal.

Last but not least, fasten the BLACK clamp to the negative terminal of the DEAD battery or a bare metal fastener or bracket on the car's engine. A grounding bolt is specifically located for this function in some models.

4. Jump-Start the Car

Make sure the linked booster wires are not close to any moving engine components. Activate the generator by starting the car's engine.

Afterward, start the car on the low battery. You might need to wait a few minutes if the engine doesn't start straight away so that the battery can charge up sufficiently. This could happen more quickly if the booster vehicle's idle speed is increased.

 Note: Finding a dead car battery is never convenient, and bad weather can make matters worse. It's safe to jump a car in the rain if you're concerned about doing so. The car battery's voltage isn't high enough to make the process any riskier than jump-starting on a dry day, even with the addition of moisture.

5. Disconnect Jumper Cables

Disconnect the jumper cables in the opposite direction from how they were attached when the engine of the jump-started vehicle is idle and smooth. When attaching and detaching metal clamps from battery connections, be sure that they never touch.

The jumped car's negative clamp should be disconnected. 
Next, remove the booster car's negative clip. 
After that, unplug the booster car's positive clamp. 
The positive clamp from the jumped automobile should then be unplugged and removed.

6. Drive the Jumped Car

Close the car's bonnet after returning the safety cords to your emergency supply bag. Then, in order to give the alternator time to recharge the jump-started battery, drive the car for at least 20 minutes.

When you shut off the engine, make sure to park the car somewhere open and secure in case it requires a jump again. If the battery does require another jump, its state may be worsening, particularly if it is older than a few years.

The automobile battery may be diagnostically checked at many auto parts outlets that sell batteries to see whether a replacement is required.



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