Why doesn’t my Marquis battery stay charged?

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 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 do you do with my old Marquis battery?

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

How much do DieHard batteries cost for your Mercury Marquis?

Get affordable prices on Mercury 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 long do car batteries last?

A car battery normally lasts three to five years, but this number can vary based on battery type, your driving habits, and battery maintenance.

Why is there white, crusty buildup on my Marquis’s battery post?

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

How do I remove corrosion from my Marquis car battery?

Regularly inspecting and cleaning your battery terminals will help keep your Marquis’s electrical system running smoothly. Before cleaning, reference your owner’s manual for instructions on how to disconnect the battery cables. Once the cables have been disconnected, gently clean the terminals with a mixture of water and baking soda, a wire brush, and a rag.

Where can I find a battery for my Marquis?

You can shop for 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.

Car Batteries for 1985 Mercury Marquis

Get a New Mercury Battery

Get a Battery for Your Mercury Marquis

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

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Battery Size & Replacement for 1985 Mercury Marquis

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

Battery	Engine	Warranty		Cold Cranking Amps
56-1	L4/2.3L	Replacement 24 months	Performance months	550
56-1	V6/3.8L	Replacement 24 months	Performance months	550

BATTERIES
L4/2.3L - Battery: 56-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 550
V6/3.8L - Battery: 56-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 550

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Shopping for Mercury Marquis Car Batteries

Sadly, your Mercury Marquis won't last forever. Neither will its battery. The average car battery lasts three to five years. You want to replace your 1985 Mercury Marquis battery before it fails and leaves you stranded. Pay attention to clues that your battery is on its way out. A sluggish engine start, an illuminated check engine light or battery signal, bloated battery case, corroded battery posts, and subpar electrical performance can all signal 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. Visit us for a complimentary battery check and, if needed, a replacement battery for your 1985 Mercury Marquis. Automotive batteries are just one of our many areas of expertise. Our technicians are familiar with Mercury-specific recommendations for Marquis battery cold cranking amps and reserve capacity. Get help choosing the battery size that fits your car perfectly, and schedule a weekday or weekend battery replacement service for your car.

Firestone Has DieHard Batteries for Marquiss

Your Mercury Marquis deserves the best, which is why we exclusively carry the best. You need a reliable, durable and powerful battery in even the most extreme conditions. DieHard batteries shatter expectations and house the latest technology to fuel the increasing power needs of modern vehicles They're no ordinary battery, they're extraordinary. Buy a DieHard battery for your Mercury Marquis and drive with confidence knowing that your battery will perform when you need it. That's the kind of battery we deliver.

After Buying 1985 Mercury Marquis Battery

Have you recently had a fresh battery installed in your Mercury Marquis? Good thinking! Now, help it last longer and stay charged by caring for it from the get-go. ensuring all the lights are turned off before you leave the car, limiting short trips, cleaning your battery posts, and not playing the radio or using other electronics when the engine is turned off.

Answers to Your Marquis Car Battery Questions

Firestone Complete Auto Care has answers to your top car battery questions. If you have a Marquis-specific battery question, pay us a visit. Our expert techs have the answers you need.

Why doesn’t my Marquis battery stay charged? 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 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 do you do with my old Marquis battery? We recycle it, taking care of both your car and the Earth.
How much do DieHard batteries cost for your Mercury Marquis? Get affordable prices on Mercury 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 long do car batteries last? A car battery normally lasts three to five years, but this number can vary based on battery type, your driving habits, and battery maintenance.
Why is there white, crusty buildup on my Marquis’s battery post? If you notice white, crusty stuff around the battery terminals of your Marquis, 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 Marquis’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.
How do I remove corrosion from my Marquis car battery? Regularly inspecting and cleaning your battery terminals will help keep your Marquis’s electrical system running smoothly. Before cleaning, reference your owner’s manual for instructions on how to disconnect the battery cables. Once the cables have been disconnected, gently clean the terminals with a mixture of water and baking soda, a wire brush, and a rag.
Where can I find a battery for my Marquis? You can shop for 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.