Why won’t my Cougar battery hold a charge?

A car battery that needs to be jump-started every time is as good as dead. It may be getting old. Or, you may have a habit of leaving your car doors open and the dome lights on during the night. Stop by for a complimentary battery check at your favorite Firestone Complete Auto Care to learn more about the state of your battery.

What do you do with my old Cougar battery?

We recycle it! Nearly 100% of all lead-acid batteries are recyclable.

How much will replacing my Mercury Cougar’s battery cost if I get a DieHard battery?

Mercury Cougar batteries can be affordable, especially when there's an available battery coupon. The best part is every DieHard battery comes with a free replacement warranty and extra coverage with DieHard Assurance.

How long can I expect my car battery to last?

The typical 12-volt car battery may last three to five years, depending on the type of battery, the driving conditions, and how well the battery is maintained.

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

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

How do I remove corrosion from my Cougar car battery?

Regularly inspect the terminals and clean them with a mixture of baking soda and water, a wire brush, and a rag. Disconnect the battery cables before cleaning to help avoid the risk of electrical shock. Always reference and follow the instructions in your vehicle owner’s manual prior to disconnecting the battery cables.

Who carries Cougar batteries near me?

You can shop for Cougar batteries at your local Firestone Complete Auto Care, and our expert technicians will even handle the installation. Don’t have time to visit our store? Our Firestone Direct mobile vans can come to you for battery installations! Learn more about our mobile battery services.

1988 Mercury Cougar Batteries

Get a New Mercury Battery

Get a New Mercury Cougar Battery

Don’t let a dead battery stop you. Shop replacement car batteries for your 1988 Mercury Cougar at Firestone Complete Auto Care.

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Battery Size & Replacement for 1988 Mercury Cougar

Not sure what battery to get for your Mercury Cougar? Use the following chart to find information on Mercury Cougar battery size and cold cranking amps.

Battery	Engine	Warranty		Cold Cranking Amps
58-2	V6/3.8L	Replacement 24 months	Performance months	550
65-1	V8/5.0L	Replacement 24 months	Performance months	850
65-2	V8/5.0L	Replacement 36 months	Performance months	850
65-AGM	V8/5.0L	Replacement 36 months	Performance months	750

BATTERIES
V6/3.8L - Battery: 58-2 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 550
V8/5.0L - Battery: 65-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 850
V8/5.0L - Battery: 65-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 850
V8/5.0L - Battery: 65-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 750

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Buying a Replacement Battery for Mercury Cougar

You can pretty much drive your Mercury Cougar until you don't want to anymore. But your Cougar's battery? Don't count on it to last forever. Generally, car batteries last from three to five years. Don’t get stranded by your Cougar’s car battery. Replace it regularly instead! Watch for signs that your current battery is getting too old or too weak. A lagging starter, an illuminated battery or check engine light, swollen battery case, corrosion-covered posts, or dim headlights may all indicate that your battery is waving goodbye.

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. Drop in for a free battery check and, if needed, get your Mercury Cougar a replacement battery. Car batteries are one of our many specialties! Our technicians are familiar with Mercury-specific recommendations for Cougar battery CCAs and reserve capacity. Get help choosing the battery size that's best for your Cougar, and schedule an appointment today for a quick car battery replacement.

Why Choose a DieHard Battery for Your Cougar?

Your Mercury Cougar deserves the best, which is why we only carry top-of-the-line replacement parts and batteries. You need a reliable, durable and powerful battery that can handle most extreme environments and weather conditions. DieHard batteries go above and beyond and house the latest technology to fuel the growing power needs of new vehicles. They're no ordinary battery, they're extraordinary. Go with a DieHard battery for your Cougar and drive with confidence knowing that your battery will perform when you need it. That’s why you should choose batteries from Firestone Complete Auto Care.

Caring for a New Mercury Cougar Battery

Have you recently had a fresh battery installed in your Mercury Cougar? Great job! Give your new car battery the best start with proper care. ensuring all the lights are turned off before you leave the car, limiting short trips, keeping the battery posts corrosion-free, and not using electronics such as the radio and power outlets when the engine is off.