What Happens If You Connect Both Terminals of a Battery? (Learn Now)

Published on: October 6, 2022
Written by Ian Carter / Fact-checked by Baten Khalil

If you connect both terminals of a battery, the battery will be discharged. This is because when you connect the two terminals, there is a pathway for current to flow from one terminal to the other. When this happens, the battery’s chemical reaction is reversed, and it can no longer produce electricity.

what happens if you connect both terminals of a battery

If you connect both terminals of a battery, the current will flow from the positive terminal to the negative terminal. This will cause a chemical reaction in the battery, which will generate heat and may cause the battery to explode.

What Happens When You Connect the Positive And Negative Terminals of a Battery?

When you connect a battery’s positive and negative terminals, an electric current flows through the circuit. This current can work, such as powering a light bulb or a motor. The battery provides the energy to make this happen.

Connecting Positive And Negative Battery Terminals

Most cars have a positive battery terminal and a negative battery terminal. The positive terminal is usually red, and the negative terminal is usually black. You need to connect the positive and negative terminals to start your car.

Jumper Cable

One way to do this is to use jumper cables. Jumper cables have alligator clips on each end that attach to the battery terminals. Once the jumper cables are attached, you can start your car by touching the two ends of the cable together.

Battery Charger

Another way to connect the positive and negative terminals is by using a battery charger. Most battery chargers have two leads, one red and one black. The red lead attaches to the positive terminal, and the black lead attaches to the negative terminal.

You can then plug the charger into an outlet and turn it on, which will charge your battery.

What Happens If You Connect Two Positive Battery Terminals Together?

In a nutshell, nothing really bad happens if you connect two positive battery terminals together. The current from one battery will flow into the other battery, and they will both discharge until each voltage is equalized.

However, there are a couple of things to keep in mind:

Number oneFirst, if the batteries are different sizes (i.e., one is a car battery and the other is a AA), the smaller battery will be quickly discharged and could be damaged.
Number twoSecond, if something is connected to either of the batteries (like an LED light), that load will also affect how quickly the batteries discharge.
A couple of things to keep in mind

Connect Positive And Negative Terminals Together

Assuming you would like a blog post discussing the safety of connecting positive and negative terminals together: When working with electricity, it is important to be aware of the risks involved. One such risk is connecting the positive and negative terminals together.

While this may seem harmless, it can be quite dangerous. Connecting the positive and negative terminals together creates a circuit, which can cause an electrical current to flow through your body. This can lead to burns, muscle damage, or even death.

Therefore, it is important to take precautions when working with electricity and to avoid connecting the positive and negative terminals.

When are the Wires Connected to the Terminals of the Battery? What Causes Electric Current?

When electric current flows through a circuit, it is caused by the movement of electrons. When the wires are connected to the battery’s terminals, the battery provides a force that pushes the electrons through the wires. This flow of electrons is called an electric current.

Connecting Battery Terminals Together

Most people don’t realize how important it is to connect battery terminals correctly. If you don’t do it right, you could end up causing a fire or damaging your battery.

Here’s what you need to know about connecting battery terminals together:

First Step

There are two types of battery terminals – positive and negative. You’ll need to connect the positive terminal of one battery to the negative terminal of the other. Make sure the batteries are facing in the correct direction before attempting to connect them.

Second Step

If you’re using jumper cables, hook up the red cable to the positive terminal on one battery and then hook up the black cable to the negative terminal on the other.

Third Step

Once both ends are hooked up, ensure that no bare metal is touching anywhere – this could cause a short circuit and start a fire. Once everything is hooked up correctly, start your engine and let it run for a few minutes before disconnecting everything. It’s important to know that If you run out of gas, your car will not start.

This will help charge your batteries so they’ll be ready to go when needed.

What Happens If You Connect Positive to Negative on a Car Battery?

what happens if you connect positive to negative on a car battery
Credit: www.lifewire.com

If you connect the positive terminal of a car battery to the negative terminal, nothing will happen. The circuit will be complete, and no current will flow. This is because there is no potential difference between the two terminals.

What Happens If I Touch Both Terminals on a Car Battery?

If you touch both car battery terminals, you will most likely receive a shock. This is because the terminals are full of electrons; when you touch them, those electrons will flow into your body. The amount of current that flows into your body depends on how much contact you make with the terminals and how much charge is in the battery.

A 12-volt battery has enough charge to kill a person if they are not careful. Also, make sure the fluid level is ok or your positive battery terminal will keep corroding.

Frequently Asked Question

What Happens When 2 Terminals of a Battery are Connected?

When two battery terminals are connected, it is called a circuit. In a circuit, the current flows from the positive terminal to the negative terminal. The current is carried by electrons flowing through the wires and devices in the circuit.

What Happens If You Connect Positive to Negative And Negative to Positive?

The circuit will be shorted out if you connect a positive terminal to a negative terminal and vice versa. This will cause a large amount of current to flow through the circuit, which can damage or destroy electronic components. In some cases, it may also cause a fire.

What Will Happen If Both the Terminals are Positive?

If both terminals are positive, then a current will flow from the positive terminal of one battery to the negative terminal of the other battery. This will cause a discharge of both batteries and can potentially damage them.

End Note

Connecting both terminals of a battery will create a circuit, and the current will flow through the battery. This can cause the battery to overheat and possibly explode.


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