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How to disconnect the car battery safely

how to disconnect car battery Working on a  car battery can be daunting for many people, especially those who have just bought their first cars. A big mistake when dealing with auto parts and you could have an accident. 

For this reason it is very important to know how to handle auto parts e.g  how to disconnect the car battery 

Fortunately disconnecting and reconnecting a car battery is one of the easiest tasks when working on a car project.

How To Disconnect Car Battery

Why do you have to disconnect car batteries?

how to disconnect car battery Many people would wonder why removing a car battery is essential knowledge. The main reason for removing the car battery is to avoid an electric shock accident especially

how to disconnect car battery when you are working on other parts. Below are other possible reasons why it is necessary to disconnect the car battery.

1. Cleaning purposes

In this case, insufficient electricity can be passed on to the terminals. Because of this, some of your  electrical components  may not work properly.

 You will need an old toothbrush to clean your car battery . Mix a heaping tablespoon of baking soda with half a liter of water. Dry the battery and connectors with a dry towel.

2. Replacement

There will always be a time when you need to replace your car battery. Typically car batteries last an average of three to five years. If you’re having trouble turning on your car’s ignition you may need to replace it with a new one.

3. For storage

If you are not going to drive your vehicle for a long time, we recommend that you disconnect the car battery for storage. One of the good examples is when you go on vacation. This way you can prevent the battery from running down. The battery has a shorter lifespan due to frequent discharging of the charge.

Precautions Before you disconnect the battery

Make sure the vehicle is turned off
It is important that you turn off your vehicle while working on the battery. how to disconnect car battery Make sure that all devices in your car that are battery operated are switched off. Working on a car battery with the ignition on can result in an accident or electric shock.

Work on a flat surface and in a well ventilated area.
Avoid changing the roadside battery as much as possible. There are many things that can cause unfortunate events such as traffic or accidents

Work on a flat surface and in a well-ventilated area.
Avoid changing the roadside battery as much as possible. There are many things that can cause unfortunate events such as traffic or accidents.

Remove all jewelry
you should avoid wearing your valuable jewelry when working on your car battery it. Remove your watch or wedding ring to avoid electric shock.

Parts you need to know

There are two important things you need to know before you can start working on your car battery. The most important parts are the negative and the positive connection. 

How To Disconnect Car Battery

With a normal “AA” size battery, the negative pole and the positive pole are usually labeled. In a car battery, the minus pole is the one with a black cap or the one with the minus or “-” sign. In the meantime a positive connection is the one with a red cap or a “+” sign. 

After determining where these terminals are located you need to determine the socket size for the socket wrench to work on the nut.

Tools you need to know

You need suitable tools to work safely on the battery trolley. The goggles protect your eyes from unexpected sparks that can be dangerous when you are working on how to disconnect car battery .

3 How to disconnect the car battery safely

You will also need a wrench set to loosen the nut. Make sure you have your wrench extender ready if you need it.

Finally, use insulated work gloves to protect your hand from electric shock and flammable hydrogen gases.

How to disconnect car battery?

1. Know the location of the battery

Different vehicles have different specifications and parts positions. Some cars have their battery compartment on one corner of the engine compartment. Other cars would place the compartment near the windshield. Newer cars may have a battery cover. 

How do I disconnect a car battery?

2. Choose the correct socket for a wrench

Typical socket wrench sizes for the wrenches are 7 mm, 8 mm, 10 mm or 13 mm. You need the wrench based on your vehicle. It’s easier if you have quick releases because you don’t need a tool. 

3. First loosen the nut on the negative pole

Why should you disconnect the negative pole first? This is to prevent a short circuit from being caused which can damage some electronic devices in the vehicle. Always work on the negative pole first. 

4. Disconnect the negative cable

Next you need to remove the cable from the terminal. Use binding material to ensure that the cable is not in contact with metal. 

5. Do the same with the positive pole

Repeat steps 3 and 4 with the positive pole. Make sure that neither cable touches the metal or the end of the other.

6. Remove the battery from the car

Finally, remove the car battery to begin cleaning, replacement, or simply storage. Some car batteries may weigh more than 20 pounds and you may want to ask someone else to help you lift the battery.

How do I reconnect a car battery?

1. Place the (new) battery in the car

First you have to clean both the minus cable and the plus cable with a connecting brush. Then place the (new) battery in the car compartment. 

2. Insert the washers 

Install anti-corrosion washers on both clamps. The red washer is for the positive connection while the black one is for the negative connection. They are easily available in online shops or in any nearby garage store.

3. First connect the positive cable

When connecting a new or previous battery, plug the cable into the positive terminal first and make sure that the cable runs along the bottom of the connector. Tighten the nut with the wrench. 

4. Do the same with the minus cable

Do the same step for the minus cable. Spray some battery protection and sealant into both clamps. This prevents the formation of corrosion. 

5. Test the car for problems

Finally, test your battery by starting your car. The car should start easily when the battery is inserted correctly. If that doesn’t work, you need to look for possible errors.

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