Why doesn’t my C1500 Suburban 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’ve been leaving the doors slightly open and the dome lights on during the night. Stop by for a complimentary battery check at your favorite Firestone Complete Auto Care and get a handle on your car battery’s health.

What do you do with my dead C1500 Suburban battery?

We’ll recycle your car battery for you!

What’s the cost of DieHard batteries for GMC C1500 Suburbans?

You can find affordable C1500 Suburban 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?

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.

Why is there white, flaky stuff around my C1500 Suburban’s battery post?

The white, crusty stuff that can accumulate around C1500 Suburban 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.

How do I clean a corroded C1500 Suburban battery terminal?

You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your C1500 Suburban 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 C1500 Suburban?

You can shop for C1500 Suburban 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 GMC C1500 Suburban Car Batteries

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Get a New GMC C1500 Suburban Battery

Don't let a failing battery slow you down. Shop replacement batteries for 1985 GMC C1500 Suburbans today and schedule a quick installation at Firestone Complete Auto Care.

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Battery Size & Replacement for 1985 GMC C1500 Suburban

Not sure what battery to get for your GMC C1500 Suburban? Use this chart to find the right battery size and CCAs for your GMC C1500 Suburban.

Battery	Engine	Warranty		Cold Cranking Amps
34/78-4	V8/5.7L	Replacement 24 months	Performance months	800
75FT-3	V8/5.7L	Replacement 36 months	Performance months	700
78-AGM	V8/5.7L	Replacement 36 months	Performance months	740
75-2	V8/5.0L	Replacement 24 months	Performance months	650
75FT-3	V8/5.0L	Replacement 36 months	Performance months	700
78-AGM	V8/5.0L	Replacement 36 months	Performance months	740
34/78-4	V8/6.2L	Replacement 24 months	Performance months	800
75FT-3	V8/6.2L	Replacement 36 months	Performance months	700
78-AGM	V8/6.2L	Replacement 36 months	Performance months	740

BATTERIES
V8/5.7L - Battery: 34/78-4 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 800
V8/5.7L - Battery: 75FT-3 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 700
V8/5.7L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740
V8/5.0L - Battery: 75-2 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 650
V8/5.0L - Battery: 75FT-3 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 700
V8/5.0L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740
V8/6.2L - Battery: 34/78-4 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 800
V8/6.2L - Battery: 75FT-3 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 700
V8/6.2L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740

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Buying a Replacement Battery for GMC C1500 Suburban

Your C1500 Suburban doesn't have an expiration date, but its battery does. 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 GMC C1500 Suburban stranded. Look out for symptoms of a faulty car battery. A slow engine crank, an illuminated check engine light or battery signal, swollen battery case, corroded battery terminals, or dim 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. Visit us for a complimentary battery check and, if needed, a replacement battery for your 1985 GMC C1500 Suburban. Car batteries are one of our many specialties! Our expert technicians understand GMC service recommendations for C1500 Suburban battery CCAs and reserve capacity. Get help identifying the type and size of battery that matches your vehicle, and schedule a weekday or weekend battery replacement service for your car.

Firestone Has DieHard Batteries for C1500 Suburbans

Your GMC C1500 Suburban deserves the best, which is why we exclusively carry the best. Your C1500 Suburban needs a reliable, durable and powerful battery that can handle most extreme environments and weather conditions. DieHard C1500 Suburban batteries surpass expectations using the latest innovative technology to satisfy the increasing power needs of new vehicles. They're no ordinary battery, they're extraordinary. Buy a DieHard battery for your GMC C1500 Suburban and drive with confidence knowing that performance will be there when you need it most. That's the kind of battery we deliver.

Caring for a New GMC C1500 Suburban Battery

Got a new car battery installed in your 1985 GMC C1500 Suburban? Good thinking! Give your new car battery the best start with proper care. ensuring all the lights are turned off before you leave the car, decreasing the number of short trips you take, cleaning your battery posts, and avoiding radio and electronic component use when the engine is off.