Why won't my S8 battery stay charged?

A battery is in its final hour when it will no longer hold a charge. It may be getting 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 local Firestone Complete Auto Care and learn more about your battery's charge.

What do you do with my old S8 battery?

We’ll recycle your car battery for you!

What’s the cost of DieHard batteries for Audi S8s?

Audi S8 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 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.

What is the white, crusty substance accumulating on my S8’s battery post?

The white, flaky stuff that can build up around your S8’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 S8, 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 clean corrosion off my S8 vehicle battery?

You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your S8 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 find a battery for my S8?

At Firestone Complete Auto Care, we make it easy to get a new car battery. Our stores sell and install S8 batteries, and our Firestone Direct mobile vans can even come to you for added convenience. Check out our mobile battery services to learn more.

Car Batteries for 2015 Audi S8

Get a New Audi Battery

Get a New Audi S8 Battery

Don’t let a dead battery stop you. Shop replacement car batteries for your 2015 Audi S8 at Firestone Complete Auto Care.

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2015 Audi S8 Battery Replacement & Size

Not sure what battery to get for your Audi S8? Check the chart to find the right car battery size and cold cranking amps for your S8.

Battery	Engine	Warranty		Cold Cranking Amps
93-1	V8/4.0L	Replacement 24 months	Performance months	825
49H8	V8/4.0L	Replacement 36 months	Performance months	900
H7-AGM	V8/4.0L	Replacement 36 months	Performance months	850

BATTERIES
V8/4.0L - Battery: 93-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 825
V8/4.0L - Battery: 49H8 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 900
V8/4.0L - Battery: H7-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 850

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Buy the Right Battery for Your Audi S8

Sadly, your Audi S8 won't last forever. Neither will its battery. 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 Audi S8 stranded. Look out for symptoms of a faulty car battery. A slow engine crank, a blinking battery or check engine light, swollen battery case, corrosion-covered posts, or weak lights can all be signs that your battery needs attention.

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. Drop in for a free battery check and, if necessary, a battery replacement to help keep your 2015 Audi S8 running! Car batteries are one of our many specialties! Our expert technicians understand Audi service recommendations for S8 battery cold cranking amps and reserve capacity. Get help choosing the battery size that fits your car perfectly, and schedule a fast car battery replacement at your earliest convenience.

Find the Right DieHard Battery for Your S8

We know what’s best for your Audi S8, which is why we exclusively carry the best. You need a reliable, durable and powerful battery in extremely hot and cold environments. DieHard batteries go above and beyond using the latest innovative technology to fuel the expanding power needs of modern vehicles A DieHard battery isn't an ordinary car battery. It's extraordinary. Go with a DieHard battery for your S8 and get behind the wheel with confidence. Why? Because your battery will perform when you need it. That's the kind of battery we deliver.

After Buying 2015 Audi S8 Battery

Have you recently had a fresh battery installed in your Audi S8? Good thinking! You can give your new battery a head start with proper care and attention. ensuring all the lights are turned off before you leave the car, limiting short trips, keeping your battery posts clean, and avoiding radio and electronic component use when the engine is off.

Commonly Asked S8 Battery Questions

Get answers to common car battery questions, from Firestone Complete Auto Care. If you have a battery question that's unique to your Audi S8 battery, stop by your nearest store. Our technicians are happy to help.

Why won't my S8 battery stay charged? A battery is in its final hour when it will no longer hold a charge. It may be getting 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 local Firestone Complete Auto Care and learn more about your battery's charge.
What do you do with my old S8 battery? We’ll recycle your car battery for you!
What’s the cost of DieHard batteries for Audi S8s? Audi S8 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 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.
What is the white, crusty substance accumulating on my S8’s battery post? The white, flaky stuff that can build up around your S8’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 S8, 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 clean corrosion off my S8 vehicle battery? You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your S8 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 find a battery for my S8? At Firestone Complete Auto Care, we make it easy to get a new car battery. Our stores sell and install S8 batteries, and our Firestone Direct mobile vans can even come to you for added convenience. Check out our mobile battery services to learn more.