Why won't my C2500 battery stay charged?

A car battery that needs to be jump-started every time is as good as dead. The battery may be too old. Or, you may have been leaving your car doors ajar and the cabin light at night. Stop by for a free battery test at your favorite Firestone Complete Auto Care and get a handle on your car battery’s health.

What do you do with my old C2500 battery?

We recycle it, taking care of both your car and the Earth.

How much do DieHard batteries cost for your GMC C2500?

You can find affordable C2500 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 long do car batteries last?

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 C2500’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 C2500 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.

How do I clean a corroded C2500 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 C2500 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 C2500 batteries near me?

When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install C2500 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.

1986 GMC C2500 Car Batteries

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GMC C2500 Batteries Near You

Don't let a failing battery slow you down. Shop replacement batteries for 1986 GMC C2500s today and schedule a quick installation at Firestone Complete Auto Care.

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The Right Battery Size for a 1986 GMC C2500

Need more info about GMC C2500 batteries? Check the chart to find the right car battery size and cold cranking amps for your C2500.

Battery	Engine	Warranty		Cold Cranking Amps
34/78-4	L6/4.8L	Replacement 24 months	Performance months	800
75FT-3	L6/4.8L	Replacement 36 months	Performance months	700
78-AGM	L6/4.8L	Replacement 36 months	Performance months	740
78-1	V8/5.0L	Replacement 24 months	Performance months	700
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	V6/4.3L	Replacement 24 months	Performance months	800
75FT-3	V6/4.3L	Replacement 36 months	Performance months	700
78-AGM	V6/4.3L	Replacement 36 months	Performance months	740
34/78-4	V8/6.2L	Replacement 24 months	Performance months	800
78FT-2	V8/6.2L	Replacement 36 months	Performance months	800
78-AGM	V8/6.2L	Replacement 36 months	Performance months	740
34/78-4	V8/7.4L	Replacement 24 months	Performance months	800
75FT-3	V8/7.4L	Replacement 36 months	Performance months	700
78-AGM	V8/7.4L	Replacement 36 months	Performance months	740
78-1	V8/5.7L	Replacement 24 months	Performance months	700
78FT-2	V8/5.7L	Replacement 36 months	Performance months	800
78-AGM	V8/5.7L	Replacement 36 months	Performance months	740

BATTERIES
L6/4.8L - Battery: 34/78-4 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 800
L6/4.8L - Battery: 75FT-3 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 700
L6/4.8L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740
V8/5.0L - Battery: 78-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 700
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
V6/4.3L - Battery: 34/78-4 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 800
V6/4.3L - Battery: 75FT-3 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 700
V6/4.3L - 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: 78FT-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
V8/6.2L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740
V8/7.4L - Battery: 34/78-4 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 800
V8/7.4L - Battery: 75FT-3 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 700
V8/7.4L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740
V8/5.7L - Battery: 78-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 700
V8/5.7L - Battery: 78FT-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
V8/5.7L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740

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Shopping for GMC C2500 Car Batteries

You can pretty much drive your GMC C2500 until you don't want to anymore. But your C2500's battery? Don't count on it to last forever. The average car battery lasts three to five years. Don’t get stranded by your C2500’s car battery. Replace it regularly instead! Pay attention to clues that your battery is on its way out. A slow engine crank, an illuminated check engine light or battery signal, swollen battery case, corroded battery posts, or faded headlights can all be signs that your battery is on its last leg.

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. Drop in for a free battery check and, if necessary, a battery replacement to help keep your 1986 GMC C2500 running! Car batteries are only one of our many strong suits. Our technicians are well-acquainted with GMC’s service specs for C2500 car batteries’ reserve capacities and cold cranking amps. Get help choosing the battery size that matches your vehicle, and schedule a weekday or weekend battery replacement service for your car.

Firestone Has DieHard Batteries for C2500s

We know what’s best for your GMC C2500, which is why we carry just that. Your C2500 needs a reliable, durable and powerful battery in even some of the toughest conditions. DieHard batteries shatter expectations using the latest innovative technology to meet the expanding power needs of new vehicles. A DieHard battery isn't an ordinary car battery. It's extraordinary. Go with a DieHard battery for your C2500 and drive with confidence knowing that performance will be there when you need it most. That's the kind of battery we deliver.

Making Your C2500’s New Battery Last

Have you recently had a fresh battery installed in your GMC C2500? Great job! Give your new car battery the best start with proper care. flipping the dome lights and headlights off when exiting the car, limiting short trips, keeping the battery posts corrosion-free, and not using electronics such as the radio and power outlets when the engine is off.

Commonly Asked C2500 Battery Questions

Firestone Complete Auto Care has answers to your top car battery questions. If you have battery questions that are GMC C2500-specific, stop by your nearest store. Our technicians are happy to help.

Why won't my C2500 battery stay charged? A car battery that needs to be jump-started every time is as good as dead. The battery may be too old. Or, you may have been leaving your car doors ajar and the cabin light at night. Stop by for a free battery test at your favorite Firestone Complete Auto Care and get a handle on your car battery’s health.
What do you do with my old C2500 battery? We recycle it, taking care of both your car and the Earth.
How much do DieHard batteries cost for your GMC C2500? You can find affordable C2500 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 long do car batteries last? 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 C2500’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 C2500 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.
How do I clean a corroded C2500 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 C2500 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 C2500 batteries near me? When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install C2500 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.