Why won’t my K5 Blazer battery hold a charge?

A battery that won't hold a charge is almost as good as dead. The battery might be old. Or, you may have been leaving your car doors ajar and the cabin light at night. Stop by for a complimentary battery check at your nearest Firestone Complete Auto Care to learn more about the state of your battery.

What do you do with my dead K5 Blazer battery?

We’ll recycle your car battery for you!

What’s the cost of DieHard batteries for Chevrolet K5 Blazers?

Get affordable prices on Chevrolet K5 Blazer 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 often should I replace my car battery?

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.

Why is there white, flaky stuff around my K5 Blazer’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 K5 Blazer 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 corrosion off my K5 Blazer vehicle battery?

Regularly inspecting and cleaning your battery terminals will help keep your K5 Blazer’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.

Where can I purchase K5 Blazer batteries near me?

Your local Firestone Complete Auto Care sells and installs K5 Blazer batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.

1986 Chevrolet K5 Blazer Car Batteries

Get a New Chevrolet Battery

Get a New Chevrolet K5 Blazer Battery

Don’t let a dead battery stop you. Shop replacement car batteries for your 1986 Chevrolet K5 Blazer at Firestone Complete Auto Care.

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The Right Battery Size for a 1986 Chevrolet K5 Blazer

Need more info about Chevrolet K5 Blazer batteries? Use this chart to find the right battery size and CCAs for your Chevrolet K5 Blazer.

Battery	Engine	Warranty		Cold Cranking Amps
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
78FT-2	V8/5.7L	Replacement 36 months	Performance months	800
78-AGM	V8/5.7L	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
V8/5.0L - 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: 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
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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Shopping for Chevrolet K5 Blazer Car Batteries

You can pretty much drive your Chevrolet K5 Blazer until you don't want to anymore. But your K5 Blazer's battery? Don't count on it to last forever. 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 Chevrolet K5 Blazer stranded. Look out for symptoms of a faulty car battery. A sluggish engine start, an illuminated battery or check engine light, swollen battery case, corroded battery terminals, or faded headlights can all be signs that your battery is waving goodbye.

Plus, at Firestone Complete Auto Care, we’ll test your battery for free. With best-in-class tools we can tell you how much "life" is left in your battery. Visit us for a complimentary battery check and, if needed, a replacement battery for your 1986 Chevrolet K5 Blazer. Car batteries are one of our many specialties! Our technicians are well-acquainted with Chevrolet’s service specs for K5 Blazer battery cold cranking amps and reserve capacity. Get help identifying the type and size of battery that's best for your K5 Blazer, and schedule an appointment today for a quick car battery replacement.

Find the Right DieHard Battery for Your K5 Blazer

We know what’s best for your Chevrolet K5 Blazer, which is why we only carry top-of-the-line replacement parts and batteries. You need a reliable, durable and powerful battery that can handle most extreme environments and weather conditions. DieHard batteries go above and beyond using the latest innovative technology to meet the increasing power demands of modern vehicles Don't call a DieHard battery ordinary. It's an extraordinary battery. Buy a DieHard battery for your Chevrolet K5 Blazer and drive with confidence knowing that your battery will perform when you need it. That’s why you should choose batteries from Firestone Complete Auto Care.

After Buying 1986 Chevrolet K5 Blazer Battery

Did you recently have a new 1986 Chevrolet K5 Blazer car battery installed? Good thinking! You can give your new battery a head start with proper care and attention. You can take care of your battery by decreasing the number of short trips you take, keeping your battery posts clean, and avoiding radio and electronic component use when the engine is off.

Commonly Asked K5 Blazer Battery Questions

Firestone Complete Auto Care has answers to your top car battery questions. If you have a battery question that's unique to your Chevrolet K5 Blazer battery, stop by your nearest store. Our technicians have the answers.

Why won’t my K5 Blazer battery hold a charge? A battery that won't hold a charge is almost as good as dead. The battery might be old. Or, you may have been leaving your car doors ajar and the cabin light at night. Stop by for a complimentary battery check at your nearest Firestone Complete Auto Care to learn more about the state of your battery.
What do you do with my dead K5 Blazer battery? We’ll recycle your car battery for you!
What’s the cost of DieHard batteries for Chevrolet K5 Blazers? Get affordable prices on Chevrolet K5 Blazer 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 often should I replace my car battery? 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.
Why is there white, flaky stuff around my K5 Blazer’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 K5 Blazer 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 corrosion off my K5 Blazer vehicle battery? Regularly inspecting and cleaning your battery terminals will help keep your K5 Blazer’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.
Where can I purchase K5 Blazer batteries near me? Your local Firestone Complete Auto Care sells and installs K5 Blazer batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.