Why doesn’t my S6 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 nearest Firestone Complete Auto Care to learn more about the state of your battery.

What do you do with my dead S6 battery?

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

How much do DieHard batteries cost for your Audi S6?

You can find affordable S6 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 is a car battery good for?

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 S6’s battery post?

If you notice white, crusty stuff around the battery terminals of your S6, 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 S6’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.

How do I clean a corroded S6 battery terminal?

Regularly inspect the terminals and clean them with a mixture of baking soda and water, a wire brush, and a rag. Disconnect the battery cables before cleaning to help avoid the risk of electrical shock. Always reference and follow the instructions in your vehicle owner’s manual prior to disconnecting the battery cables.

Who carries S6 batteries near me?

Your local Firestone Complete Auto Care sells and installs S6 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 2021 Audi S6

Get a New Audi Battery

Get a New Audi S6 Battery

Don’t let a dead battery stop you. Shop replacement car batteries for your 2021 Audi S6 at Firestone Complete Auto Care.

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2021 Audi S6 Battery Replacement & Size

Need more info about Audi S6 batteries? Check the chart to find the right car battery size and cold cranking amps for your S6.

Battery	Engine	Warranty		Cold Cranking Amps
95R/H9	V6/2.9L	Replacement 36 months	Performance months	950
H8-AGM	V6/2.9L	Replacement 36 months	Performance months	900
95R/H9	V6/2.9L	Replacement 36 months	Performance months	950
H8-AGM	V6/2.9L	Replacement 36 months	Performance months	900
95R/H9	V6/2.9L	Replacement 36 months	Performance months	950
H8-AGM	V6/2.9L	Replacement 36 months	Performance months	900

BATTERIES
V6/2.9L - Battery: 95R/H9 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 950
V6/2.9L - Battery: H8-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 900
V6/2.9L - Battery: 95R/H9 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 950
V6/2.9L - Battery: H8-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 900
V6/2.9L - Battery: 95R/H9 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 950
V6/2.9L - Battery: H8-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 900

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Buying a Replacement Battery for Audi S6

Sadly, your Audi S6 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 S6’s car battery. Replace it regularly instead! Watch for signs that your current battery is getting too old or too weak. A slow engine crank, a blinking battery or check engine light, swollen battery case, corroded battery posts, or dim headlights may all indicate that your battery is waving goodbye.

You can also get a Free Battery Test at your local Firestone Complete Auto Care. Our equipment can see how much charge is left in your battery. Visit us for a complimentary battery check and, if necessary, a battery replacement to help keep your 2021 Audi S6 running! Car batteries are only one of our many strong suits. Our technicians are well-acquainted with Audi’s service specs for S6 car batteries’ reserve capacities and cold cranking amps. Get help figuring out 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 S6

Your Audi S6 deserves the best, which is why we exclusively carry the best. Your vehicle needs a reliable, durable and powerful battery in extremely hot and cold environments. DieHard batteries go above and beyond and house the latest technology to meet the growing power demands of new vehicles. Don't call a DieHard battery ordinary. It's an extraordinary battery. Choose a DieHard battery for your Audi S6 and have the peace of mind that your battery will perform when you need it. That's the kind of battery we deliver.

Caring for a New Audi S6 Battery

Got a new car battery installed in your 2021 Audi S6? Good thinking! 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, decreasing the number of short trips you take, cleaning your battery posts, and not using electronics such as the radio and power outlets when the engine is off.

Commonly Asked S6 Battery Questions

Turn to Firestone Complete Auto Care for answers to all your car battery questions. If you have battery questions that are Audi S6-specific, visit your nearest store. Our technicians are happy to help.

Why doesn’t my S6 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 nearest Firestone Complete Auto Care to learn more about the state of your battery.
What do you do with my dead S6 battery? We recycle it! Nearly 100% of all lead-acid batteries are recyclable.
How much do DieHard batteries cost for your Audi S6? You can find affordable S6 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 is a car battery good for? 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 S6’s battery post? If you notice white, crusty stuff around the battery terminals of your S6, 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 S6’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.
How do I clean a corroded S6 battery terminal? Regularly inspect the terminals and clean them with a mixture of baking soda and water, a wire brush, and a rag. Disconnect the battery cables before cleaning to help avoid the risk of electrical shock. Always reference and follow the instructions in your vehicle owner’s manual prior to disconnecting the battery cables.
Who carries S6 batteries near me? Your local Firestone Complete Auto Care sells and installs S6 batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.