Why won’t my Eldorado battery hold a charge?

A car battery that needs to be jump-started every time is as good as dead. The battery may be too old. Or, you may have been leaving your car doors ajar and the cabin light at night. Stop by for a free battery test at your favorite Firestone Complete Auto Care and learn more about your battery's charge.

What happens to my old Eldorado battery?

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

How much do DieHard batteries cost for your Cadillac Eldorado?

Get affordable prices on Cadillac Eldorado batteries by using one of our limited-time battery deals. Plus, all DieHard car batteries come with a free replacement warranty and extra coverage with DieHard Assurance.

How long do car batteries last?

You can usually get three to five years out of your car battery. However, battery type, how well you maintain your battery, and your driving habits can all affect your battery’s lifespan.

What is the white, crusty stuff around my Eldorado’s battery post?

If you notice white, crusty stuff around the battery terminals of your Eldorado, 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 Eldorado’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.

How do I clean a corroded Eldorado battery terminal?

You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your Eldorado 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.

Who carries Eldorado batteries near me?

Your local Firestone Complete Auto Care sells and installs Eldorado batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.

Car Batteries for 1990 Cadillac Eldorado

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Cadillac Eldorado Batteries Near You

Don't let a failing battery slow you down. Shop replacement batteries for 1990 Cadillac Eldorados today and schedule a quick installation at Firestone Complete Auto Care.

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1990 Cadillac Eldorado Battery Replacement & Size

Not sure what battery to get for your Cadillac Eldorado? Use this chart to find the right battery size and CCAs for your Cadillac Eldorado.

Battery	Engine	Warranty		Cold Cranking Amps
34/78-4	V8/4.5L	Replacement 24 months	Performance months	800
78FT-2	V8/4.5L	Replacement 36 months	Performance months	800
78-AGM	V8/4.5L	Replacement 36 months	Performance months	740

BATTERIES
V8/4.5L - Battery: 34/78-4 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 800
V8/4.5L - Battery: 78FT-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
V8/4.5L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740

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Buy the Right Battery for Your Cadillac Eldorado

Your Eldorado 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 Cadillac Eldorado stranded. Watch for signs that your current battery is getting too old or too weak. A slow engine crank, an illuminated battery or check engine light, bloated battery case, corrosion-covered posts, or weak lights can all signal that your battery is on its last leg.

You can also get a Free Battery Test at your local Firestone Complete Auto Care. Our equipment can see how much charge is left in your battery. Stop by for a free battery test and, if needed, a replacement battery for your 1990 Cadillac Eldorado. Car batteries are only one of our many strong suits. Our expert technicians understand Cadillac service recommendations for Eldorado car batteries’ reserve capacities and cold cranking amps. Get help choosing the battery size that matches your vehicle, and schedule an appointment today for a quick car battery replacement.

Find the Right DieHard Battery for Your Eldorado

We only want what’s best for your Cadillac Eldorado, which is why we carry just that. Your vehicle needs a reliable, durable and powerful battery in even some of the toughest conditions. DieHard batteries go above and beyond and house the latest technology to fuel the growing power demands of modern vehicles Don't call a DieHard battery ordinary. It's an extraordinary battery. Go with a DieHard battery for your Eldorado and have the peace of mind that performance will be there when you're counting on it. That’s why you should choose batteries from Firestone Complete Auto Care.

After Buying 1990 Cadillac Eldorado Battery

Did you recently have a new 1990 Cadillac Eldorado car battery installed? Great job! Give your new car battery the best start with proper care. Help extend your car battery’s life by limiting short trips, keeping your battery posts clean, and not using electronics such as the radio and power outlets when the engine is off.