Why won’t my S5 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 a habit of leaving your car doors open and the lights on overnight. Stop by for a free battery test at your nearest Firestone Complete Auto Care and get a handle on your car battery’s health.

What happens to my old S5 battery?

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

How much do DieHard batteries cost for your Audi S5?

You can find affordable S5 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 often should I replace my car battery?

You can usually get three to five years out of your car battery. However, battery type, how well you maintain your battery, and your driving habits can all affect your battery’s lifespan.

What is the white, crusty stuff around my S5’s battery post?

If you notice white, crusty stuff around the battery terminals of your S5, 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 S5’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.

How do I clean a corroded S5 battery terminal?

To help extend the life of your battery, you should routinely inspect and clean the terminals using a baking soda and water mix, wire brush, and rag. Be sure to disconnect the battery cables before cleaning and check your S5 owner’s manual for instructions on how to do so.

Where can I find a battery for my S5?

Your local Firestone Complete Auto Care sells and installs S5 batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.

2021 Audi S5 Batteries

Get a New Audi Battery

Get a Battery for Your Audi S5

Don’t let a dead battery stop you. Shop replacement car batteries for your 2021 Audi S5 at Firestone Complete Auto Care.

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The Right Battery Size for a 2021 Audi S5

Not sure what battery to get for your Audi S5? Use this chart to find the right battery size and CCAs for your Audi S5.

Battery	Engine	Warranty		Cold Cranking Amps
93-1	V6/3.0L	Replacement 24 months	Performance months	825
49H8	V6/3.0L	Replacement 36 months	Performance months	900
H6-AGM	V6/3.0L	Replacement 36 months	Performance months	760

BATTERIES
V6/3.0L - Battery: 93-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 825
V6/3.0L - Battery: 49H8 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 900
V6/3.0L - Battery: H6-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 760

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Shopping for Audi S5 Car Batteries

You can pretty much drive your Audi S5 until you don't want to anymore. But your S5's battery? Don't count on it to last forever. On average, auto batteries last anywhere from three to five years. You want to replace your 2021 Audi S5 battery before it fails and leaves you 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 posts, or dim headlights can all signal that your battery is on its last leg.

You can also get a Free Battery Test at your local Firestone Complete Auto Care. With computerized testing we can see how much charge is left in your battery. Visit us for a complimentary battery check and, if needed, get your Audi S5 a replacement battery. Car batteries are one of our many specialties! Our technicians are well-acquainted with Audi’s service specs for S5 battery CCAs and reserve capacity. Get help identifying the type and size of battery that fits your car perfectly, and schedule a fast car battery replacement at your earliest convenience.

Firestone Has DieHard Batteries for S5s

We only want what’s best for your Audi S5, which is why we only carry top-of-the-line replacement parts and batteries. Your S5 needs 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 demands of new vehicles and their accessories. They're no ordinary battery, they're extraordinary. Choose a DieHard battery for your Audi S5 and drive with confidence knowing that your battery will perform when you need it. That's the kind of battery we deliver.

After Buying 2021 Audi S5 Battery

Have you recently had a fresh battery installed in your Audi S5? Great job! Now, help it last longer and stay charged by caring for it from the get-go. Help extend your car battery’s life by decreasing the number of short trips you take, keeping your battery posts clean, and not using electronics such as the radio and power outlets when the engine is off.