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How to Replace the Battery in a 2003 to 2007 Honda Accord

Replacing the battery in your 2003-2007 Honda Accord is an essential maintenance task that ensures your vehicle starts reliably. Car batteries help start your Accord and power various electrical components like the radio, power windows, seats, and door locks while the engine is off. All car batteries will need to be replaced over time, as they can degrade and fail due to age, use, climate, and driving habits. Signs that your car battery is bad include a clicking sound when you turn the key in the ignition, corroded battery terminals, malfunctioning or inoperative electrical accessories, or if your vehicle cranks slowly or won’t attempt to start at all.

Save time by following our detailed instructions and video guide on how to replace a Honda Accord battery. The following video demonstrates how to replace the battery in a 2006 Honda Accord LX, and the instructions will also apply to 2003, 2004, 2005, and 2007 Honda Accord models. Be sure to consult your owners manual to find exact replacement intervals and specifications for a complete, confident repair on your Honda Accord.

Tools & Materials

Safety Glasses Safety Glasses

Gloves Nitrile Gloves

Battery & Accessories Super Start Battery

Step-By-Step Instructions to Change a Car Battery in a 2003-2007 Honda Accord

Learn how to replace your 2003-2007 Honda Accord's car battery with these step-by-step instructions from O'Reilly Auto Parts. Replacing the battery in your Accord at the first sign of weakness or failure can help you maintain its reliability and keep you on the road. If your battery is weak, or if you're not sure if you need a new car battery, visit your local O'Reilly Auto Parts. We can test or charge your battery for free, as well as recommend the best replacement battery for your Accord.

In three images, our expert opens the hood of the Honda Accord, and disconnects the battery using a deep socket.

Step 1: Prepare Your Accord

Park on a level surface, and open the hood. Use your 10mm deep socket or wrench to loosen the negative battery cable, which is attached to the terminal toward the outside of the vehicle. Once it’s loose enough, lift it off and move it aside. Repeat this step for the positive battery terminal.
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In two images, the battery hold-down is loosened and the old battery is removed.

Step 2: Remove Your Old Battery

Use the same socket or wrench to loosen the nuts on the battery hold-down. Remove the hold-down by slipping the hooks out of their holes on both sides of the battery tray. Now you should be able to lift the battery out.
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Our expert installs a new battery into the Accord’s battery tray.

Step 3: Install Your New Battery

Set your new battery in the battery tray in the same orientation as the old one.
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In two images, the battery hold-down is installed and secured.

Step 4: Reinstall Your Battery Hold-Down

To reinstall the hold-down, set it in place on the battery. Make sure the hooks at the bottom of the J-shaped rods slip into the holes on the battery tray and tighten the nuts.
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In two images, the battery cables are reconnected and our expert closes the Accord’s hood.

Step 5: Reattach Your Battery Cables

Inspect your battery cables for any signs of corrosion. If you notice rust, discoloration, or flakiness, be sure to clean the battery cables. In some instances of advanced corrosion, you may need to replace them. Use your socket or wrench to reattach the positive battery cable first. Then, reattach your negative battery cable. Use battery terminal protectors to prevent corrosion and extend battery life. Once both battery cables have been reattached, close the hood.

Do It Right: Because your battery cables were detached, it’s likely your factory stereo settings and clock will need to be reset.

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Additional Resources

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Car batteries provide the electrical power required to start the engine, operate lights, and power various electrical systems in your Honda Accord to deliver the reliability you expect from your Accord. Regular inspection and testing of your battery are recommended to ensure your Accord starts reliably. If you need to have your battery tested, O’Reilly Auto Parts offers free battery testing and free alternator testing to help you correctly diagnose and repair your starting and charging system issues.

Explore our How-To Hub for more resources on car batteries, including tips on battery care, why your car won’t start, and much more to help you get the job done right.


The automotive repair work depicted in this series is performed under the direction of the manufacturer of the product featured. Prior to undertaking any of the demonstrated repairs on your vehicle, we suggest you consult with a certified mechanic or another professional who can adequately advise you of the proper repair or remedy required. O’Reilly Automotive Stores, Inc. and its affiliates (“O’Reilly”) disclaims any responsibility for injury or damage resulting from a viewer’s attempt to recreate the repairs shown in this series.