Why doesn’t my Mustang battery stay charged?

A battery that won't hold a charge is almost as good as dead. It may be getting old. Or, you may have a habit of leaving your car doors open and the cabin light at night. Stop by for a free battery test at your favorite Firestone Complete Auto Care and learn more about your battery's charge.

What do you do with my dead Mustang battery?

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

How much do DieHard batteries cost for your Ford Mustang?

You can find affordable Mustang 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?

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.

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

The white, crusty stuff that can accumulate around Mustang car battery terminals is called corrosion. It is caused by a chemical reaction between the battery acid and the air, which creates a white, powdery substance that can build up on the terminals over time. Corrosion can interfere with the flow of electricity between the battery post and the car's electrical system, sometimes leading to poor electrical performance, difficulty starting, and even premature battery failure.

What do I do about corrosion on my Mustang 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 Mustang 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.

Who carries Mustang batteries near me?

You can shop for Mustang 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 Ford Mustang Car Batteries

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Ford Mustang Batteries Near You

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

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The Right Battery Size for a 1985 Ford Mustang

Not sure what battery to get for your Ford Mustang? Check the chart to find the right car battery size and cold cranking amps for your Mustang.

Battery	Engine	Warranty		Cold Cranking Amps
56-1	V6/3.8L	Replacement 24 months	Performance months	550
56-1	V8/5.0L	Replacement 24 months	Performance months	550
56-1	L4/2.3L	Replacement 24 months	Performance months	550

BATTERIES
V6/3.8L - Battery: 56-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 550
V8/5.0L - Battery: 56-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 550
L4/2.3L - Battery: 56-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 550

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Buying a Replacement Battery for Ford Mustang

Sadly, your Ford Mustang won't last forever. Neither will its battery. The average car battery lasts three to five years. You want to replace your 1985 Ford Mustang 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, bloated battery case, corroded battery terminals, or faded headlights can all be signs 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. Drop in for a free battery check and, if needed, get your Ford Mustang a replacement battery. Automotive batteries are just one of our many areas of expertise. Our technicians are familiar with Ford-specific recommendations for Mustang battery CCAs and reserve capacity. Get help identifying the type and size of battery that's best for your Mustang, and schedule a weekday or weekend battery replacement service for your car.

Firestone Has DieHard Batteries for Mustangs

We only want what’s best for your Ford Mustang, which is why we only carry top-of-the-line replacement parts and batteries. You need a reliable, durable and powerful battery that can handle most extreme environments and weather conditions. DieHard batteries shatter expectations using the latest innovative technology to meet the growing power needs of new vehicles. A DieHard battery isn't an ordinary car battery. It's extraordinary. Choose a DieHard battery for your Ford Mustang and drive with confidence knowing that your battery will perform when you need it. That's the kind of battery we deliver.

Caring for a New Ford Mustang Battery

Got a new car battery installed in your 1985 Ford Mustang? 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.