Why won’t my Envoy battery hold a charge?

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 been leaving your car doors ajar and the lights on overnight. Stop by for a complimentary battery check at your nearest Firestone Complete Auto Care and learn more about your battery's charge.

What happens to my old Envoy battery?

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

How much will replacing my GMC Envoy’s battery cost if I get a DieHard battery?

GMC Envoy batteries can be affordable, especially when there's an available battery coupon. The best part is every DieHard battery comes with a free replacement warranty and extra coverage with DieHard Assurance.

How long do car batteries 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 substance accumulating on my Envoy’s battery post?

The white, flaky stuff that can build up around your Envoy’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 Envoy, possibly causing issues with electrical performance and starting. If left unaddressed for long enough, it may even cause your battery to prematurely fail.

How do I remove corrosion from my Envoy 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 Envoy 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 Envoy batteries near me?

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

Car Batteries for 2005 GMC Envoy

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GMC Envoy Batteries Near You

Don't let a failing battery slow you down. Shop replacement batteries for 2005 GMC Envoys today and schedule a quick installation at Firestone Complete Auto Care.

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Battery Size & Replacement for 2005 GMC Envoy

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

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
78-1	V8/5.3L	Replacement 24 months	Performance months	700
78FT-2	V8/5.3L	Replacement 36 months	Performance months	800
78-AGM	V8/5.3L	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
V8/5.3L - Battery: 78-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 700
V8/5.3L - Battery: 78FT-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
V8/5.3L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740

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Buying a Replacement Battery for GMC Envoy

Sadly, your GMC Envoy won't last forever. Neither will its battery. On average, auto batteries last anywhere from three to five years. Don’t get stranded by your Envoy’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 signal that your battery is on its last leg.

Plus, at Firestone Complete Auto Care, we’ll test your battery for free. With computerized testing we can see how much charge is left in your battery. Stop by for a free battery test and, if necessary, a battery replacement to help keep your 2005 GMC Envoy running! Car batteries are one of our many specialties! Our expert technicians understand GMC service recommendations for Envoy battery cold cranking amps and reserve capacity. Get help identifying the type and size of battery that matches your vehicle, and schedule an appointment today for a quick car battery replacement.

Why Choose a DieHard Battery for Your Envoy?

We know what’s best for your GMC Envoy, which is why we exclusively carry the best. You need a reliable, durable and powerful battery that can handle most extreme environments and weather conditions. DieHard batteries shatter expectations and house the latest technology to satisfy the expanding power requirements of new vehicles and their accessories. A DieHard battery isn't an ordinary car battery. It's extraordinary. Choose a DieHard battery for your GMC Envoy and have the peace of mind that your battery will perform when you need it. That’s why you should choose batteries from Firestone Complete Auto Care.

Caring for a New GMC Envoy Battery

Got a new car battery installed in your 2005 GMC Envoy? Congrats! You can give your new battery a head start with proper care and attention. Give your new battery a hand by limiting short trips, cleaning your battery posts, and not using electronics such as the radio and power outlets when the engine is off.

Answers to Your Envoy Car Battery Questions

Turn to Firestone Complete Auto Care for answers to all your car battery questions. If you have a Envoy-specific battery question, stop by your nearest store. Our technicians are happy to help.

Why won’t my Envoy battery hold a charge? 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 been leaving your car doors ajar and the lights on overnight. Stop by for a complimentary battery check at your nearest Firestone Complete Auto Care and learn more about your battery's charge.
What happens to my old Envoy battery? We recycle it! Nearly 100% of all lead-acid batteries are recyclable.
How much will replacing my GMC Envoy’s battery cost if I get a DieHard battery? GMC Envoy batteries can be affordable, especially when there's an available battery coupon. The best part is every DieHard battery comes with a free replacement warranty and extra coverage with DieHard Assurance.
How long do car batteries 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 substance accumulating on my Envoy’s battery post? The white, flaky stuff that can build up around your Envoy’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 Envoy, possibly causing issues with electrical performance and starting. If left unaddressed for long enough, it may even cause your battery to prematurely fail.
How do I remove corrosion from my Envoy 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 Envoy 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 Envoy batteries near me? Your local Firestone Complete Auto Care sells and installs Envoy batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.