Why doesn’t my Mountaineer battery stay charged?

A battery is in its final hour when it will no longer hold a charge. The battery may be too old. Or, you may have been leaving your car doors ajar and the dome lights on during the night. Stop in for a free battery check at your favorite Firestone Complete Auto Care and learn more about your battery's charge.

What do you do with my dead Mountaineer battery?

We’ll recycle your car battery for you!

How much do DieHard batteries cost for your Mercury Mountaineer?

You can find affordable Mountaineer batteries by using one of our car battery coupons, when available. Plus, every DieHard battery comes with extra coverage thanks to DieHard Assurance and a free replacement warranty.

How often should I replace my car battery?

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?

A chemical reaction between battery acid and the air can cause a white, crusty buildup to form on the terminals of your Mountaineer car battery. This buildup — known as corrosion — can impede the flow of electricity and cause a range of issues, from poor performance to premature battery failure.

What do I do about corrosion on my Mountaineer car battery?

Regularly inspecting and cleaning your battery terminals will help keep your Mountaineer’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.

Who sells Mountaineer batteries near me?

When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install Mountaineer batteries at our stores nationwide — and our Firestone Direct mobile vans can provide convenient on-site battery services. Learn more about our mobile battery services and book an appointment.

Car Batteries for 2004 Mercury Mountaineer

Get a New Mercury Battery

Get a Battery for Your Mercury Mountaineer

Don’t let a dead battery stop you. Shop replacement car batteries for your 2004 Mercury Mountaineer at Firestone Complete Auto Care.

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The Right Battery Size for a 2004 Mercury Mountaineer

Need more info about Mercury Mountaineer batteries? 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

Your Mountaineer doesn't have an expiration date, but its battery does. The average car battery lasts three to five years. Check your battery regularly and replace it as needed so it doesn’t leave you and your Mercury Mountaineer stranded. Look out for symptoms of a faulty car battery. A slow engine crank, an illuminated check engine light or battery signal, bloated battery case, corroded battery terminals, or faded headlights may all indicate that your battery is waving goodbye.

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, get your Mercury Mountaineer a replacement battery. Car batteries are one of our many specialties! Our technicians are familiar with Mercury-specific recommendations for Mountaineer battery cold cranking amps and reserve capacity. Get help identifying the type and size of battery that fits your car perfectly, and schedule a fast car battery replacement at your earliest convenience.

Firestone Has DieHard Batteries for Mountaineers

We only want what’s best for your Mercury Mountaineer, which is why we carry just that. You need a reliable, durable and powerful battery in even the most extreme conditions. DieHard batteries shatter expectations and house the latest technology to satisfy the increasing power needs of new vehicles and their accessories. They're no ordinary battery, they're extraordinary. Choose a DieHard battery for your Mercury Mountaineer 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 Mountaineer Battery

Did you recently have a new 2004 Mercury Mountaineer car battery installed? Great job! You can give your new battery a head start with proper care and attention. turning off all of the lights when you leave your vehicle, decreasing the number of short trips you take, keeping your battery posts clean, and not playing the radio or using other electronics when the engine is turned off.