Why doesn’t my Mountaineer battery stay charged?

A car battery that needs to be jump-started every time is as good as dead. The battery might be old. Or, you’ve been leaving the doors slightly open and the dome lights on during the night. Stop in for a free battery check at your local Firestone Complete Auto Care and learn more about your battery's charge.

What happens to 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 can I expect my car battery to 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.

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

The white, flaky stuff that can build up around your Mountaineer’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 Mountaineer, 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 Mountaineer car battery?

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 find a battery for my Mountaineer?

At Firestone Complete Auto Care, we make it easy to get a new car battery. Our stores sell and install Mountaineer batteries, and our Firestone Direct mobile vans can even come to you for added convenience. Check out our mobile battery services to learn more.

Car Batteries for 2002 Mercury Mountaineer

Get a New Mercury Battery

Get a Battery for Your Mercury Mountaineer

Don't let a failing battery slow you down. Shop replacement batteries for 2002 Mercury Mountaineers today and schedule a quick installation at Firestone Complete Auto Care.

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2002 Mercury Mountaineer Battery Replacement & Size

Researching battery replacements 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	V8/4.6L	Replacement 24 months	Performance months	850
65-2	V8/4.6L	Replacement 36 months	Performance months	850
65-AGM	V8/4.6L	Replacement 36 months	Performance months	750
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

BATTERIES
V8/4.6L - Battery: 65-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 850
V8/4.6L - Battery: 65-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 850
V8/4.6L - Battery: 65-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 750
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

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Shopping for Mercury Mountaineer Car Batteries

You can pretty much drive your Mercury Mountaineer until you don't want to anymore. But your Mountaineer's battery? Don't count on it to last forever. On average, auto batteries last anywhere from three to five years. Check your battery regularly and replace it as needed so it doesn’t leave you and your Mercury Mountaineer stranded. 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, bloated battery case, corroded battery posts, or weak lights may all indicate that your battery is on its last leg.

Or, you can get a complimentary battery check at your nearest 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 well-acquainted with Mercury’s service specs for Mountaineer battery CCAs and reserve capacity. Get help figuring out the battery size that matches your vehicle, 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 only carry top-of-the-line replacement parts and batteries. Your vehicle needs a reliable, durable and powerful battery in extremely hot and cold environments. DieHard batteries shatter expectations using state-of-the-art advancements to meet the growing power requirements of modern vehicles They're no ordinary battery, they're extraordinary. Go with a DieHard battery for your Mountaineer and drive with confidence knowing that performance will be there when you're counting on it. 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 2002 Mercury Mountaineer? Congrats! You can give your new battery a head start with proper care and attention. Help extend your car battery’s life by limiting short trips, keeping your battery posts clean, and not playing the radio or using other electronics when the engine is turned off.

Answers to Your Mountaineer Car Battery Questions

Get answers to common car battery questions, from Firestone Complete Auto Care. If you have a Mountaineer-specific battery question, stop by your nearest store. Our expert techs have the answers you need.

Why doesn’t my Mountaineer battery stay charged? A car battery that needs to be jump-started every time is as good as dead. The battery might be old. Or, you’ve been leaving the doors slightly open and the dome lights on during the night. Stop in for a free battery check at your local Firestone Complete Auto Care and learn more about your battery's charge.
What happens to 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 can I expect my car battery to 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.
Why is there white, flaky stuff around my Mountaineer’s battery post? The white, flaky stuff that can build up around your Mountaineer’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 Mountaineer, 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 Mountaineer car battery? 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 find a battery for my Mountaineer? At Firestone Complete Auto Care, we make it easy to get a new car battery. Our stores sell and install Mountaineer batteries, and our Firestone Direct mobile vans can even come to you for added convenience. Check out our mobile battery services to learn more.