Why won’t my Diplomat battery hold a charge?

A battery is in its final hour when it will no longer hold a charge. The battery might be 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 nearest Firestone Complete Auto Care and learn more about your battery's charge.

What do you do with my dead Diplomat battery?

We’ll recycle your car battery for you!

How much do DieHard batteries cost for your Dodge Diplomat?

Dodge Diplomat batteries can be affordable, especially when there's an available battery coupon. The best part is every DieHard battery comes 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 substance accumulating on my Diplomat’s battery post?

The white, flaky stuff that can build up around your Diplomat’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 Diplomat, 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 Diplomat 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 Diplomat 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 sells Diplomat batteries near me?

Your local Firestone Complete Auto Care sells and installs Diplomat batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.

1989 Dodge Diplomat Car Batteries

Get a New Dodge Battery

Get a New Dodge Diplomat Battery

Don’t let a dead battery stop you. Shop replacement car batteries for your 1989 Dodge Diplomat at Firestone Complete Auto Care.

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Battery Size & Replacement for 1989 Dodge Diplomat

Researching battery replacements for your Dodge Diplomat? Use the following chart to find information on Dodge Diplomat battery size and cold cranking amps.

Battery	Engine	Warranty		Cold Cranking Amps
26-3	V8/5.2L	Replacement 24 months	Performance months	525
34FT-2	V8/5.2L	Replacement 36 months	Performance months	800
34-AGM	V8/5.2L	Replacement 36 months	Performance months	740

BATTERIES
V8/5.2L - Battery: 26-3 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 525
V8/5.2L - Battery: 34FT-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
V8/5.2L - Battery: 34-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740

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Shopping for Dodge Diplomat Car Batteries

Sadly, your Dodge Diplomat won't last forever. Neither will its battery. Generally, car batteries last from three to five years. Don’t get stranded by your Diplomat’s car battery. Replace it regularly instead! Pay attention to clues that your battery is on its way out. A lagging starter, an illuminated battery or check engine light, swollen battery case, corrosion-covered posts, or weak lights can all be signs that your battery needs attention.

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. Visit us for a complimentary battery check and, if needed, get your Dodge Diplomat a replacement battery. Automotive batteries are just one of our many areas of expertise. Our technicians are familiar with Dodge-specific recommendations for Diplomat battery cold cranking amps and reserve capacity. Get help identifying the type and size of battery that matches your vehicle, and schedule a fast car battery replacement at your earliest convenience.

Is There a DieHard Battery for Diplomats?

We only want what’s best for your Dodge Diplomat, which is why we carry just that. Your Diplomat needs a reliable, durable and powerful battery that can handle most extreme environments and weather conditions. DieHard Diplomat batteries surpass expectations using state-of-the-art advancements to satisfy the growing power needs of modern vehicles Don't call a DieHard battery ordinary. It's an extraordinary battery. Choose a DieHard battery for your Dodge Diplomat and get behind the wheel with confidence. Why? Because performance will be there when you need it most. That's the kind of battery we deliver.

Caring for a New Dodge Diplomat Battery

Did you recently have a new 1989 Dodge Diplomat car battery installed? Great job! Give your new car battery the best start with proper care. Give your new battery a hand by limiting short trips, keeping your battery posts clean, and not using electronics such as the radio and power outlets when the engine is off.

Answers to Your Diplomat Car Battery Questions

Turn to Firestone Complete Auto Care for answers to all your car battery questions. If you have battery questions that are Dodge Diplomat-specific, stop by your nearest store. Our technicians are happy to help.

Why won’t my Diplomat battery hold a charge? A battery is in its final hour when it will no longer hold a charge. The battery might be 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 nearest Firestone Complete Auto Care and learn more about your battery's charge.
What do you do with my dead Diplomat battery? We’ll recycle your car battery for you!
How much do DieHard batteries cost for your Dodge Diplomat? Dodge Diplomat batteries can be affordable, especially when there's an available battery coupon. The best part is every DieHard battery comes 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 substance accumulating on my Diplomat’s battery post? The white, flaky stuff that can build up around your Diplomat’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 Diplomat, 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 Diplomat 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 Diplomat 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 sells Diplomat batteries near me? Your local Firestone Complete Auto Care sells and installs Diplomat batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.