​How to Change Your Car Battery Yourself

Posted by Keyless Entry Remote Inc on Feb 12th 2023

A car battery is one of the most important components of a vehicle. It provides the necessary power to start the engine and run electrical systems when the alternator isn’t generating enough power. However, over time, car batteries wear out and can no longer hold a charge, leaving you stranded with a dead battery. The good news is, replacing a car battery is a simple task that can be done by anyone with basic mechanical skills. In this blog, we will guide you through the process of changing your car battery yourself.

Materials Needed:

  • New battery
  • Wrench or socket set
  • Ratchet
  • Screwdriver
  • Battery terminal cleaner or sandpaper
  • Battery terminal protection spray
  • Safety glasses

Step 1: Purchase a New Battery The first step in changing your car battery is to purchase a new one. Make sure you get the correct battery for your make and model of car. You can find the specifications for your car battery in your vehicle’s owner’s manual or by checking the battery size and terminal configuration under the hood.

Step 2: Prepare Your Workspace Before you start removing the old battery, make sure you have a clean and well-lit workspace. You should also put on safety glasses to protect your eyes from battery acid and other debris.

Step 3: Disconnect the Negative Cable Locate the negative battery cable, which is typically black and is connected to the negative terminal on the battery. Use a wrench or socket to loosen the nut that holds the cable to the terminal. Carefully remove the cable from the terminal and place it in a secure location, away from the battery.

Step 4: Disconnect the Positive Cable Next, locate the positive battery cable, which is typically red and is connected to the positive terminal on the battery. Loosen the nut holding the cable to the terminal and remove the cable from the battery.

Step 5: Remove the Old Battery At this point, the battery should be free from cables and can be removed from the vehicle. Make sure to hold the battery with both hands and lift it straight up, being careful not to spill any battery acid.

Step 6: Clean the Battery Terminals Using a battery terminal cleaner or sandpaper, clean the terminals on the battery to remove any corrosion or debris. This will ensure that the new battery will have a good connection.

Step 7: Install the New Battery Place the new battery in the same position as the old battery, making sure it is securely fastened. Reconnect the positive cable to the positive terminal, followed by the negative cable to the negative terminal. Tighten the nuts on both cables to secure the cables to the terminals.

Step 8: Test the New Battery Turn on your car’s headlights to check if the battery is working properly. If the lights are bright and steady, it means that the battery is installed correctly and is providing power to the vehicle.

Conclusion Replacing a car battery is a simple task that can be done by anyone with basic mechanical skills. By following these steps, you can save time and money by avoiding a trip to the mechanic and doing the job yourself. Remember to always wear safety glasses and to take precautions when handling the battery to avoid any accidents. Good luck!

Visit our blog article to learn more of the most common DIY automotive projects to save money

We Are The Experts

Unmatched, expert support for ANY keyless remote issue. We've got your back!

Need Help?

Stay In The Know

Sign up for Keyless Entry Remote's News, Sales, and Deals.

Join Our Mailing List

Programming Instructions

Remote & Transponder Key Programming Instructions for over 5,000 vehicles!

Find Yours