Why won't my Grand Marquis battery stay charged?

A battery that won't hold a charge is almost as good as dead. The battery might be old. Or, you may have been leaving your car doors ajar and the cabin light at night. Stop in for a free battery check at your favorite Firestone Complete Auto Care and get a handle on your car battery’s health.

What happens to my old Grand Marquis battery?

We’ll recycle your car battery for you!

How much do DieHard batteries cost for your Mercury Grand Marquis?

Get affordable prices on Mercury Grand Marquis 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 often should I replace my car battery?

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.

What is the white, crusty substance accumulating on my Grand Marquis’s battery post?

The white, flaky stuff that can build up around your Grand Marquis’s battery terminals is known as corrosion. Acid leaking from your vehicle’s battery post can have a chemical reaction with the air, leading to an accumulation of the white, powdery substance over time. Corrosion can affect the flow of electricity between your battery and the electrical system in your Grand Marquis, possibly causing issues with electrical performance and starting. If left unaddressed for long enough, it may even cause your battery to prematurely fail.

How do I remove corrosion from my Grand Marquis 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 sells Grand Marquis batteries near me?

You can shop for Grand Marquis 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.

1985 Mercury Grand Marquis Batteries

Get a New Mercury Battery

Get a Battery for Your Mercury Grand Marquis

Don’t let a dead battery stop you. Shop replacement car batteries for your 1985 Mercury Grand Marquis at Firestone Complete Auto Care.

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The Right Battery Size for a 1985 Mercury Grand Marquis

Researching battery replacements for your Mercury Grand Marquis? Use the following chart to find information on Mercury Grand Marquis battery size and cold cranking amps.

Battery	Engine	Warranty		Cold Cranking Amps
56-1	V8/5.0L	Replacement 24 months	Performance months	550
56-1	V8/5.8L	Replacement 24 months	Performance months	550

BATTERIES
V8/5.0L - Battery: 56-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 550
V8/5.8L - Battery: 56-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 550

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Shopping for Mercury Grand Marquis Car Batteries

Your Grand Marquis doesn't have an expiration date, but its battery does. Generally, car batteries last from three to five years. You want to replace your 1985 Mercury Grand Marquis battery before it fails and leaves you stranded. Look out for symptoms of a faulty car battery. A lagging starter, a blinking battery or check engine light, swollen battery case, corroded battery posts, and subpar electrical performance can all signal that your battery is on its last leg.

Plus, at Firestone Complete Auto Care, we’ll test your battery for free. Our equipment can see how much charge is left in your battery. Visit us for a complimentary battery check and, if needed, a replacement battery for your 1985 Mercury Grand Marquis. Automotive batteries are just one of our many areas of expertise. Our technicians are familiar with Mercury-specific recommendations for Grand Marquis battery cold cranking amps and reserve capacity. Get help identifying the type and size of battery that fits your car perfectly, and schedule a weekday or weekend battery replacement service for your car.

Find the Right DieHard Battery for Your Grand Marquis

We only want what’s best for your Mercury Grand Marquis, which is why we only carry top-of-the-line replacement parts and batteries. Your vehicle needs a reliable, durable and powerful battery that can handle most extreme environments and weather conditions. DieHard Grand Marquis batteries surpass expectations and house the latest technology to satisfy the expanding power demands of new vehicles and their accessories. They're no ordinary battery, they're extraordinary. Choose a DieHard battery for your Mercury Grand Marquis and have the peace of mind that your battery will perform when you need it. That's the kind of battery we deliver.

Caring for a New Mercury Grand Marquis Battery

Have you recently had a fresh battery installed in your Mercury Grand Marquis? Congrats! Give your new car battery the best start with proper care. ensuring all the lights are turned off before you leave the car, cutting back on unnecessary short trips, keeping your battery posts clean, and not using electronics such as the radio and power outlets when the engine is off.