How to Jump Start a Car? Comprehensive Guide

You’re running late as having a very important and crucial client appointment especially the one who just hate being late for a commitment, you jump into your car, turn the keys, and…Tadaa!!! Nothing happens.

The cold-coughed dead battery strikes when you least expect it. But fear not, because in this article, we’re going to teach you the art of jump starting a car, and the essential tool that makes it all possible – jumper cables.

Whether you’re a seasoned driver or a novice, understanding how to jump start a car battery with leads is a skill that can save the day when your vehicle’s heart needs a boost. Join us as we explore the ins and outs of jump-starting a car, demystifying the process and ensuring you’re never stranded again. Let’s rev up your knowledge on how to jump start a car battery and get you back on the road in no time!

Step by Step Guide to Jump Start a Car:

Everyone has experienced this right!!! You turn the key in the ignition, but instead of hearing your engine grumble assuringly, you hear quiet. Anyone can experience a dead vehicle battery, but don’t panic; jump-starting a car is a useful skill that’s comparatively simple to acquire. To help you quickly get your car back on the road, we’ll walk you through the procedure in this tutorial in simple words.

What you’ll need:

Get the following things before you start:

  • Jumper Cables:

To connect a dead battery to a live one, use these specific cables with clamps at either end.

  • A Running automobile:

To jump-start your automobile, you’ll need another vehicle with a charged battery.

  • Safety equipment:

To protect you from sparks and battery acid, put on gloves and safety glasses.

Step 1:

Park the Vehicles Close Together

Park both vehicles close enough that the jumper cables can reach between their batteries easily. Switch off cars and use parking brakes.

Step 2:

Identify the Battery Terminals

Open the hoods of both cars and locate the battery. You’ll see two terminals on each battery: one is positive (+) and the other is negative (-).Typically, the negative terminal is black and the positive terminal is red.

Step 3:

Setting Up Jumper Cable Connections

Using your jumper cables, carry out the subsequent steps to establish the connections.

  • Attach the red positive jumper lead’s one end to the dead battery’s positive terminal-look for the ‘+’ sign.
  • Attach the opposite end of the red positive wire to the good battery’s positive terminal.
  • Attach the black negative jumper lead’s open end to the good battery’s negative terminal-look for the ‘-‘ sign.
  • Far from the battery, clamp the other end of the black negative lead to some clean, unpainted metal on the engine block of the dead automobile. It shouldn’t be connected to the negative terminal since doing so might cause sparking or an explosion.

Step 4:                                       

Start the Working Car

Start the functioning vehicle and let it run for a while. The dead battery will be charged as a result.

Step 5:

Start the Dead Car

Attempt to start the dead car. Wait a few more minutes and try again if it doesn’t start the first time. If it still doesn’t start, there may be more significant issues with your vehicle, and it’s best to consult a professional.

Step 6:

Unplug the Jumper Cables

Gently unhook the jumper cables in the opposite direction from how you connected them once the dead car has started.

  • Remove the black cable from the metal grounding point on the dead automobile.
  • From the negative terminal of the running vehicle, disconnect the black cable.
  • From the positive terminal of the running vehicle, disconnect the red cable.
  • Last but not least, remove the red cable from the once-dead car’s positive terminal.

Step 7:

Let the Jumped Car Run

Allow the jumped car to run for about 15 minutes to recharge its battery fully.


Here are some tips for jump-starting a vehicle:

  • Confirm that the ignition switch is set to the OFF position in both vehicles.
  • Deactivate power-consuming features like lights, stereo, and interior lights to reduce the load on the donor battery.
  • Ensure the donor battery matches the voltage of the discharged battery.
  • Make certain that the two vehicles are not making physical contact in any way.
  • Ensure that both vehicles are in either Neutral (for manual transmissions) or Park (for automatic transmissions) with the handbrake engaged.
  • If dealing with non-maintenance-free batteries, cautiously remove any vent caps, as battery acid is highly corrosive.
  • Only run the engine in a well-ventilated area to prevent the accumulation of toxic exhaust gases.
  • Never leave either engine running unattended during the jump-starting process.


Jump-starting a car is a useful skill that can save you from a lot of inconvenience. Remember always to prioritize safety by wearing protective gear and following the steps carefully. If jump-starting doesn’t work, it might be a sign of a more significant issue with your vehicle, and it’s wise to seek professional help. With these easy-to-follow steps, you can confidently tackle a dead battery and get back on the road in no time.


Important Questions Regarding Jump Start Car:

Grab the knowledge with Wangara Tyre Auto!

How to use jumper cables?

  • Connect red clamp to positive (+) terminal of dead battery.
  • Attach other red clamp to positive terminal of working car.
  • Connect black clamp to working car’s negative (-) terminal.
  • Attach last black clamp to unpainted metal on dead car’s engine.
  • Start working car, wait, and try starting the dead car.

How to jump start a car with leads?

  • Connect jumper cables: red to (+), black to (-) on both batteries.
  • Start the working car, wait a bit.
  • Try starting the dead car.
  • Disconnect cables in reverse order.

How to jump start a car with another car?

  • Connect jumper cables: red to (+), black to (-) on both batteries.
  • Start the working car, wait, and try starting the dead car.
  • Disconnect cables in reverse order.

How to jump start a car without another car?

  • Use a portable jump starter: attach red to (+), black to (-).
  • Power on jump starter, wait, and try starting your car.

Can a small car jump start an SUV?

Yes, if the battery of the tiny car has sufficient power to jump start the battery of the SUV.

Can you jump start a car in the rain?

Yes, but use caution around electrical risks. Jump starting is largely unaffected by rain.

Can you use 2 batteries to jump start a car?

It is true that putting two batteries in parallel can boost the amount of power available for jump starting.

Can you jump start a motorcycle with a car?

Yes, you can, but make sure the engine is off while you connect to prevent damage to the electrical system of the motorbike.

How long does it take to jump start a car?

Typically, it takes a few minutes of driving the functional vehicle to sufficiently charge the dead battery for starting.

Before attempting to start the dead automobile, let the working one run for 5 to 10 minutes.

Does jump starting a car damage the computer?

Despite the rarity of computer damage from jump starting, it’s beneficial to take the necessary precautions to lessen risks.

Is it okay to jump start a hybrid car?

Yes, but follow the manufacturer’s guidelines. Hybrid vehicles may have specialised jump-starting techniques due to their complex systems.

What is a portable jump starter?

A small tool called a portable jump starter aids in starting a car with a dead battery. It has its own power source and can jumpstart your car without the aid of another vehicle.

How do you jump start a car with a portable jump starter?

  • To jump start with a portable jump starter:
  • Connect red clamp to car’s positive (+) battery terminal.
  • Attach black clamp to car’s metal surface.
  • Power on the jump starter.
  • Try starting your car.

What are jumper cables?

Jumper cables are cables with clamps used to connect a dead car battery to a live one, allowing the dead car to start.

How do you jump start a car with jumper cables?

  • To jump start a dead battery, attach the red clamp to its positive (+) terminal.
  • Connect the second red clamp to the vehicle’s positive terminal while it is running.
  • Connect the black clamp to the operating car’s negative (-) terminal.
  • Connect the final black clamp to an unpainted metal engine part in the abandoned vehicle.
  • After starting the car that is already running, try starting the one that isn’t.

How long should you drive after jump-starting a car?

Drive for at least 15-20 minutes after jump-starting a car to allow the alternator to fully recharge the battery.

What’s the best way to jump start a car?

The best way is to use a portable jump starter if you have one. If not, using jumper cables with another vehicle is a reliable method. Always follow safety precautions.

Will Jump Starting my Car Damage the Electronics?

Sensitive electronics may be harmed by jump starting a car, but only if the procedure is improperly carried out or the electronics are improperly connected in the first place. When jumpstarting an automobile, there is often little risk to either vehicle as long as you follow the right process. The fuses in your automobile are likely to sustain damage if the wires are connected incorrectly or in reverse.

The only real risk is of blowing fuses because newer automobiles are often fitted with surge protection and high-quality jumper wires. Even so, it’s crucial to exercise caution and make sure live cables never come into contact with anything they shouldn’t.

Can a Car Battery Be Too Dead to Jump Start?

Unfortunately, there are times when a car battery will be so dead that it will not start with a jump. A dead battery will frequently still discharge power, but it won’t be able to start your car because it can’t supply the standard 12-volt range.

In order to determine whether the battery can be jump-started, look for signs of excessive buildup close to the terminal posts, leaks, spills, swelling, or general corrosion. These are commonly present in damaged batteries.

If your car can’t be jump-started or even recharged, it’s time to recycle your old batteries at your neighborhood super-cheap auto repair shop like Wangara Tyre Auto.

Why Don’t You Connect the Negative When Jumping a Car?

When establishing a connection using jumper cables to jump start a car, it’s essential to avoid attaching the black cable to the negative terminal on the old battery. This step is unnecessary since the electrical circuit can still be closed when connecting the cable to a suitable ground point.

However, it’s not recommended due to the potential emission of volatile gases by batteries. These gases can be highly flammable, and any sparks generated during the connection process could pose a significant risk of explosion or fire.

To safely jump start a car, start by connecting the positive cable to the battery terminal. This initial connection doesn’t carry a spark risk because a complete circuit is not established yet. Then, attach the negative cable to a secure point on the chassis or engine, away from the battery. This way, any resulting spark occurs in an area less likely to be affected by potentially hazardous battery gases.

Does Giving a Jump Drain Your Battery?

However, as long as it doesn’t drop below working voltages, your battery should be more than capable of jump starting another automobile. Anything your battery performs drains it. The voltage of your battery won’t often vary at all while your car is operating since the electricity you are giving to the flat battery is really being produced by your alternator.