Why won't my Diplomat 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 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 dead Diplomat battery?

We’ll recycle your car battery for you!

How much do DieHard batteries cost for your Dodge Diplomat?

Get affordable prices on Dodge Diplomat 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, crusty buildup 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.

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

To help extend the life of your battery, you should routinely inspect and clean the terminals using a baking soda and water mix, wire brush, and rag. Be sure to disconnect the battery cables before cleaning and check your Diplomat owner’s manual for instructions on how to do so.

Where can I purchase 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.

1985 Dodge Diplomat Batteries

Get a New Dodge Battery

Get a Battery for Your Dodge Diplomat

Don't let a failing battery slow you down. Shop replacement batteries for 1985 Dodge Diplomats today and schedule a quick installation at Firestone Complete Auto Care.

Shop Batteries

1985 Dodge Diplomat Battery Replacement & Size

Need more info about Dodge Diplomat batteries? Use this chart to find the right battery size and CCAs for your Dodge Diplomat.

Battery	Engine	Warranty		Cold Cranking Amps
34/78-4	V8/5.2L	Replacement 24 months	Performance months	800
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: 34/78-4 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 800
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

Schedule an Appointment

Buy the Right Battery for Your Dodge Diplomat

Sadly, your Dodge Diplomat won't last forever. Neither will its battery. 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 Dodge Diplomat stranded. Pay attention to clues that your battery is on its way out. A lagging starter, a blinking battery or check engine light, swollen battery case, corroded battery terminals, or dim headlights may all indicate that your battery needs attention.

You can also get a Free Battery Test at your local Firestone Complete Auto Care. With best-in-class tools we can tell you how much "life" is left in your battery. Stop by for a free battery test and, if needed, a replacement battery for your 1985 Dodge Diplomat. Automotive batteries are just one of our many areas of expertise. Our expert technicians understand Dodge service recommendations for Diplomat 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.

Find the Right DieHard Battery for Your Diplomat

Your Dodge Diplomat deserves the best, which is why we exclusively carry the best. Your vehicle needs a reliable, durable and powerful battery in extremely hot and cold environments. DieHard batteries shatter expectations and house the latest technology to fuel the growing power demands of new vehicles. Don't call a DieHard battery ordinary. It's an extraordinary battery. Go with a DieHard battery for your Diplomat and get behind the wheel with confidence. Why? Because your battery will perform when you need it. That’s why you should choose batteries from Firestone Complete Auto Care.

Making Your Diplomat’s New Battery Last

Have you recently had a fresh battery installed in your Dodge Diplomat? Great job! Now, help it last longer and stay charged by caring for it from the get-go. Give your new battery a hand by decreasing the number of short trips you take, cleaning your battery posts, and not using electronics such as the radio and power outlets when the engine is off.