Why won't my Mountaineer battery stay charged?

A battery is in its final hour when it will no longer hold a charge. It may be getting old. Or, you may have a habit of leaving your car doors open and the lights on overnight. Stop by for a free battery test at your local Firestone Complete Auto Care and learn more about your battery's charge.

What do you do with my old Mountaineer battery?

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

What’s the cost of DieHard batteries for Mercury Mountaineers?

Get affordable prices on Mercury Mountaineer 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 is a car battery good for?

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.

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

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

How do I clean a corroded Mountaineer 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 Mountaineer 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 Mountaineer batteries near me?

Your local Firestone Complete Auto Care sells and installs Mountaineer 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 2001 Mercury Mountaineer

Get a New Mercury Battery

Get a New Mercury Mountaineer Battery

The middle of nowhere is the wrong place to have a weak battery. Shop replacement batteries for 2001 Mercury Mountaineer today and schedule a quick installation at Firestone Complete Auto Care.

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Battery Size & Replacement for 2001 Mercury Mountaineer

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

Battery	Engine	Warranty		Cold Cranking Amps
65-1	V6/4.0L	Replacement 24 months	Performance months	850
65-2	V6/4.0L	Replacement 36 months	Performance months	850
65-AGM	V6/4.0L	Replacement 36 months	Performance months	750
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
V6/4.0L - Battery: 65-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 850
V6/4.0L - Battery: 65-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 850
V6/4.0L - Battery: 65-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 750
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 Mountaineer

Sadly, your Mercury Mountaineer won't last forever. Neither will its battery. Generally, car batteries last from three to five years. Don’t get stranded by your Mountaineer’s car battery. Replace it regularly instead! Watch for signs that your current battery is getting too old or too weak. A slow engine crank, an illuminated check engine light or battery signal, swollen battery case, corroded battery terminals, or dim headlights can all be signs 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. Drop in for a free battery check and, if needed, get your Mercury Mountaineer a replacement battery. Automotive batteries are just one of our many areas of expertise. Our technicians are familiar with Mercury-specific recommendations for Mountaineer battery cold cranking amps and reserve capacity. Get help choosing the battery size that fits your car perfectly, and schedule a fast car battery replacement at your earliest convenience.

Is There a DieHard Battery for Mountaineers?

Your Mercury Mountaineer deserves the best, which is why we carry just that. Your vehicle needs a reliable, durable and powerful battery in even some of the toughest conditions. DieHard Mountaineer batteries surpass expectations and house the latest technology to meet the expanding power demands of modern vehicles They're no ordinary battery, they're extraordinary. Buy a DieHard battery for your Mercury Mountaineer and get behind the wheel with confidence. Why? Because performance will be there when you need it most. That’s why you should choose batteries from Firestone Complete Auto Care.

Making Your Mountaineer’s New Battery Last

Got a new car battery installed in your 2001 Mercury Mountaineer? Good thinking! 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, decreasing the number of short trips you take, keeping your battery posts clean, and avoiding radio and electronic component use when the engine is off.

Commonly Asked Mountaineer Battery Questions

Firestone Complete Auto Care has answers to your top car battery questions. If you have battery questions that are Mercury Mountaineer-specific, visit your nearest store. Our expert techs have the answers you need.

Why won't my Mountaineer battery stay charged? A battery is in its final hour when it will no longer hold a charge. It may be getting old. Or, you may have a habit of leaving your car doors open and the lights on overnight. Stop by for a free battery test at your local Firestone Complete Auto Care and learn more about your battery's charge.
What do you do with my old Mountaineer battery? We recycle it! Nearly 100% of all lead-acid batteries are recyclable.
What’s the cost of DieHard batteries for Mercury Mountaineers? Get affordable prices on Mercury Mountaineer 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 is a car battery good for? 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.
What is the white, crusty stuff around my Mountaineer’s battery post? If you notice white, crusty stuff around the battery terminals of your Mountaineer, 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 Mountaineer’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.
How do I clean a corroded Mountaineer 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 Mountaineer 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 Mountaineer batteries near me? Your local Firestone Complete Auto Care sells and installs Mountaineer batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.