Why won't my Trailblazer EXT 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 may have a habit of leaving your car doors open and the cabin light at 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 old Trailblazer EXT battery?

We recycle it! Nearly 100% of all lead-acid batteries are recyclable.

How much do DieHard batteries cost for your Chevrolet Trailblazer EXT?

You can find affordable Trailblazer EXT 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.

Why is there white, crusty buildup on my Trailblazer EXT’s battery post?

The white, flaky stuff that can build up around your Trailblazer EXT’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 Trailblazer EXT, 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 Trailblazer EXT car battery?

You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your Trailblazer EXT 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 purchase Trailblazer EXT batteries near me?

You can shop for Trailblazer EXT 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.

Car Batteries for 2002 Chevrolet Trailblazer EXT

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Chevrolet Trailblazer EXT Batteries Near You

Don’t let a dead battery stop you. Shop replacement car batteries for your 2002 Chevrolet Trailblazer EXT at Firestone Complete Auto Care.

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Battery Size & Replacement for 2002 Chevrolet Trailblazer EXT

Researching battery replacements for your Chevrolet Trailblazer EXT? Use this chart to find the right battery size and CCAs for your Chevrolet Trailblazer EXT.

Battery	Engine	Warranty		Cold Cranking Amps
78-1	L6/4.2L	Replacement 24 months	Performance months	700
78FT-2	L6/4.2L	Replacement 36 months	Performance months	800
78-AGM	L6/4.2L	Replacement 36 months	Performance months	740

BATTERIES
L6/4.2L - Battery: 78-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 700
L6/4.2L - Battery: 78FT-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
L6/4.2L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740

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Buying a Replacement Battery for Chevrolet Trailblazer EXT

Your Trailblazer EXT doesn't have an expiration date, but its battery does. 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 Chevrolet Trailblazer EXT stranded. Look out for symptoms of a faulty car battery. A sluggish engine start, a blinking battery or check engine light, swollen battery case, corroded battery posts, or weak lights can all be signs that your battery is waving goodbye.

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. Visit us for a complimentary battery check and, if needed, a replacement battery for your 2002 Chevrolet Trailblazer EXT. Automotive batteries are just one of our many areas of expertise. Our technicians are well-acquainted with Chevrolet’s service specs for Trailblazer EXT battery cold cranking amps and reserve capacity. Get help figuring out the battery size that's best for your Trailblazer EXT, and schedule a weekday or weekend battery replacement service for your car.

Is There a DieHard Battery for Trailblazer EXTs?

We know what’s best for your Chevrolet Trailblazer EXT, which is why we carry just that. You need a reliable, durable and powerful battery in even some of the toughest conditions. DieHard batteries shatter expectations using the latest innovative technology to satisfy the expanding power demands of modern vehicles Don't call a DieHard battery ordinary. It's an extraordinary battery. Go with a DieHard battery for your Trailblazer EXT and have the peace of mind that your battery will perform when you need it. That's the kind of battery we deliver.

After Buying 2002 Chevrolet Trailblazer EXT Battery

Got a new car battery installed in your 2002 Chevrolet Trailblazer EXT? Congrats! Now, help it last longer and stay charged by caring for it from the get-go. flipping the dome lights and headlights off when exiting the car, cutting back on unnecessary short trips, keeping your battery posts clean, and avoiding radio and electronic component use when the engine is off.