Why won’t my Regal battery hold a charge?

A battery is in its final hour when it will no longer hold a charge. It may be getting old. Or, you’ve been leaving the doors slightly open and the lights on overnight. Stop in for a free battery check at your nearest Firestone Complete Auto Care to learn more about the state of your battery.

What do you do with my old Regal battery?

We recycle it, taking care of both your car and the Earth.

What’s the cost of DieHard batteries for Buick Regals?

You can find affordable Regal batteries by using one of our car battery coupons, when available. Plus, every DieHard battery comes with extra coverage thanks to DieHard Assurance and a free replacement warranty.

How long can I expect my car battery to last?

Car battery lifespan varies depending on a few factors, including driving conditions, accessories, how well it’s maintained, and the type of battery. On average, a car battery lasts about three to five years.

Why is there white, flaky stuff around my Regal’s battery post?

If you notice white, crusty stuff around the battery terminals of your Regal, it's likely corrosion. A chemical reaction between battery acid and the air can create a white, powdery substance that builds up over time on the terminals. This buildup can interfere with the electrical connection between the battery and your Regal’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.

How do I clean corrosion off my Regal vehicle battery?

You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your Regal owner's manual to learn how to disconnect the battery cables. After disconnecting the cables, use a mixture of water and baking soda, a wire brush, and a rag to carefully clean the terminals.

Where can I purchase Regal batteries near me?

When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install Regal batteries at our stores nationwide — and our Firestone Direct mobile vans can provide convenient on-site battery services. Learn more about our mobile battery services and book an appointment.

2004 Buick Regal Car Batteries

Get a New Buick Battery

Get a New Buick Regal Battery

Don’t let a dead battery stop you. Shop replacement car batteries for your 2004 Buick Regal at Firestone Complete Auto Care.

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Battery Size & Replacement for 2004 Buick Regal

Not sure what battery to get for your Buick Regal? Check the chart to find the right car battery size and cold cranking amps for your Regal.

Battery	Engine	Warranty		Cold Cranking Amps
78-1	V6/3.8L	Replacement 24 months	Performance months	700
78FT-2	V6/3.8L	Replacement 36 months	Performance months	800
78-AGM	V6/3.8L	Replacement 36 months	Performance months	740

BATTERIES
V6/3.8L - Battery: 78-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 700
V6/3.8L - Battery: 78FT-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
V6/3.8L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740

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Buy the Right Battery for Your Buick Regal

Your Regal doesn't have an expiration date, but its battery does. Generally, car batteries last from three to five years. Check your battery regularly and replace it as needed so it doesn’t leave you and your Buick Regal stranded. Pay attention to clues that your battery is on its way out. A slow engine crank, a blinking battery or check engine light, swollen battery case, corrosion-covered posts, or weak lights may all indicate that your battery is on its last leg.

You can also get a Free Battery Test at your local Firestone Complete Auto Care. With computerized testing we can see how much charge is left in your battery. Drop in for a free battery check and, if needed, a replacement battery for your 2004 Buick Regal. Car batteries are only one of our many strong suits. Our technicians are well-acquainted with Buick’s service specs for Regal car batteries’ reserve capacities and cold cranking amps. Get help figuring out the battery size that's best for your Regal, and schedule an appointment today for a quick car battery replacement.

Find the Right DieHard Battery for Your Regal

Your Buick Regal deserves the best, which is why we only carry top-of-the-line replacement parts and batteries. Your vehicle needs a reliable, durable and powerful battery in extremely hot and cold environments. DieHard batteries go above and beyond using state-of-the-art advancements to satisfy the growing power requirements of new vehicles. A DieHard battery isn't an ordinary car battery. It's extraordinary. Buy a DieHard battery for your Buick Regal and get behind the wheel with confidence. Why? Because performance will be there when you need it most. That's the kind of battery we deliver.

After Buying 2004 Buick Regal Battery

Have you recently had a fresh battery installed in your Buick Regal? Congrats! Now, help it last longer and stay charged by caring for it from the get-go. flipping the dome lights and headlights off when exiting the car, cutting back on unnecessary short trips, keeping the battery posts corrosion-free, and avoiding radio and electronic component use when the engine is off.

Answers to Your Regal Car Battery Questions

Turn to Firestone Complete Auto Care for answers to all your car battery questions. If you have a battery question that's unique to your Buick Regal battery, pay us a visit. Our technicians are happy to help.

Why won’t my Regal battery hold a charge? A battery is in its final hour when it will no longer hold a charge. It may be getting old. Or, you’ve been leaving the doors slightly open and the lights on overnight. Stop in for a free battery check at your nearest Firestone Complete Auto Care to learn more about the state of your battery.
What do you do with my old Regal battery? We recycle it, taking care of both your car and the Earth.
What’s the cost of DieHard batteries for Buick Regals? You can find affordable Regal batteries by using one of our car battery coupons, when available. Plus, every DieHard battery comes with extra coverage thanks to DieHard Assurance and a free replacement warranty.
How long can I expect my car battery to last? Car battery lifespan varies depending on a few factors, including driving conditions, accessories, how well it’s maintained, and the type of battery. On average, a car battery lasts about three to five years.
Why is there white, flaky stuff around my Regal’s battery post? If you notice white, crusty stuff around the battery terminals of your Regal, it's likely corrosion. A chemical reaction between battery acid and the air can create a white, powdery substance that builds up over time on the terminals. This buildup can interfere with the electrical connection between the battery and your Regal’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.
How do I clean corrosion off my Regal vehicle battery? You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your Regal owner's manual to learn how to disconnect the battery cables. After disconnecting the cables, use a mixture of water and baking soda, a wire brush, and a rag to carefully clean the terminals.
Where can I purchase Regal batteries near me? When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install Regal batteries at our stores nationwide — and our Firestone Direct mobile vans can provide convenient on-site battery services. Learn more about our mobile battery services and book an appointment.