Why won’t my G20 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 dome lights on during the night. Stop in for a free battery check at your local Firestone Complete Auto Care to learn more about the state of your battery.

What happens to my old G20 battery?

We’ll recycle your car battery for you!

What’s the cost of DieHard batteries for Chevrolet G20s?

You can find affordable G20 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 can I expect my car battery to last?

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.

What is the white, crusty stuff around my G20’s battery post?

If you notice white, crusty stuff around the battery terminals of your G20, it's likely corrosion. A chemical reaction between battery acid and the air can create a white, powdery substance that builds up over time on the terminals. This buildup can interfere with the electrical connection between the battery and your G20’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.

How do I remove corrosion from my G20 car battery?

Regularly inspecting and cleaning your battery terminals will help keep your G20’s electrical system running smoothly. Before cleaning, reference your owner’s manual for instructions on how to disconnect the battery cables. Once the cables have been disconnected, gently clean the terminals with a mixture of water and baking soda, a wire brush, and a rag.

Who carries G20 batteries near me?

At Firestone Complete Auto Care, we make it easy to get a new car battery. Our stores sell and install G20 batteries, and our Firestone Direct mobile vans can even come to you for added convenience. Check out our mobile battery services to learn more.

1986 Chevrolet G20 Car Batteries

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Get a Battery for Your Chevrolet G20

Don’t let a dead battery stop you. Shop replacement car batteries for your 1986 Chevrolet G20 at Firestone Complete Auto Care.

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1986 Chevrolet G20 Battery Replacement & Size

Researching battery replacements for your Chevrolet G20? Use the following chart to find information on Chevrolet G20 battery size and cold cranking amps.

Battery	Engine	Warranty		Cold Cranking Amps
75-2	V6/4.3L	Replacement 24 months	Performance months	650
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	V8/5.0L	Replacement 24 months	Performance months	800
78FT-2	V8/5.0L	Replacement 36 months	Performance months	800
78-AGM	V8/5.0L	Replacement 36 months	Performance months	740
75-2	V8/5.7L	Replacement 24 months	Performance months	650
75FT-3	V8/5.7L	Replacement 36 months	Performance months	700
78-AGM	V8/5.7L	Replacement 36 months	Performance months	740
78-1	V8/6.2L	Replacement 24 months	Performance months	700
78FT-2	V8/6.2L	Replacement 36 months	Performance months	800
78-AGM	V8/6.2L	Replacement 36 months	Performance months	740

BATTERIES
V6/4.3L - Battery: 75-2 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 650
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
V8/5.0L - Battery: 34/78-4 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 800
V8/5.0L - Battery: 78FT-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
V8/5.0L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740
V8/5.7L - Battery: 75-2 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 650
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
V8/6.2L - Battery: 78-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 700
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

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Shopping for Chevrolet G20 Car Batteries

Your G20 doesn't have an expiration date, but its battery does. On average, auto batteries last anywhere from three to five years. You want to replace your 1986 Chevrolet G20 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, swollen battery case, corroded battery terminals, or faded headlights can all be signs that your battery is waving goodbye.

Or, you can get a complimentary battery check at your nearest 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 needed, get your Chevrolet G20 a replacement battery. Automotive batteries are just one of our many areas of expertise. Our technicians are familiar with Chevrolet-specific recommendations for G20 battery cold cranking amps and reserve capacity. Get help choosing the battery size that matches your vehicle, and schedule a weekday or weekend battery replacement service for your car.

Find the Right DieHard Battery for Your G20

Your Chevrolet G20 deserves the best, which is why we exclusively carry the best. Your vehicle needs a reliable, durable and powerful battery in even the most extreme conditions. DieHard batteries shatter expectations using state-of-the-art advancements to meet the growing power demands of new vehicles. They're no ordinary battery, they're extraordinary. Choose a DieHard battery for your Chevrolet G20 and get behind the wheel with confidence. Why? Because performance will be there when you're counting on it. That's the kind of battery we deliver.

Making Your G20’s New Battery Last

Did you recently have a new 1986 Chevrolet G20 car battery installed? Congrats! 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, keeping your battery posts clean, and not using electronics such as the radio and power outlets when the engine is off.