Why doesn’t my 911 battery stay charged?

A car battery that needs to be jump-started every time is as good as dead. The battery might be old. Or, you may have been leaving your car doors ajar and the cabin light at night. Stop by for a free battery test at your favorite Firestone Complete Auto Care to learn more about the state of your battery.

What do you do with my old 911 battery?

We’ll recycle your car battery for you!

How much will replacing my Porsche 911’s battery cost if I get a DieHard battery?

You can find affordable 911 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 substance accumulating on my 911’s battery post?

The white, crusty stuff that can accumulate around 911 car battery terminals is called corrosion. It is caused by a chemical reaction between the battery acid and the air, which creates a white, powdery substance that can build up on the terminals over time. Corrosion can interfere with the flow of electricity between the battery post and the car's electrical system, sometimes leading to poor electrical performance, difficulty starting, and even premature battery failure.

How do I clean corrosion off my 911 vehicle battery?

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 911 owner’s manual for instructions on how to do so.

Who sells 911 batteries near me?

Your local Firestone Complete Auto Care sells and installs 911 batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.

1997 Porsche 911 Car Batteries

Get a New Porsche Battery

Get a New Porsche 911 Battery

Don't let a failing battery slow you down. Shop replacement batteries for 1997 Porsche 911s today and schedule a quick installation at Firestone Complete Auto Care.

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The Right Battery Size for a 1997 Porsche 911

Need more info about Porsche 911 batteries? Check the chart to find the right car battery size and cold cranking amps for your 911.

Battery	Engine	Warranty		Cold Cranking Amps
48H6	H6/3.6L	Replacement 36 months	Performance months	730
H6-AGM	H6/3.6L	Replacement 36 months	Performance months	760

BATTERIES
H6/3.6L - Battery: 48H6 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 730
H6/3.6L - Battery: H6-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 760

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Buying a Replacement Battery for Porsche 911

Your 911 doesn't have an expiration date, but its battery does. 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 Porsche 911 stranded. Look out for symptoms of a faulty car battery. A sluggish engine start, an illuminated check engine light or battery signal, swollen battery case, corroded battery posts, or dim headlights can all signal that your battery needs attention.

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, get your Porsche 911 a replacement battery. Automotive batteries are just one of our many areas of expertise. Our technicians are well-acquainted with Porsche’s service specs for 911 battery CCAs and reserve capacity. Get help identifying the type and size of battery that matches your vehicle, and schedule a fast car battery replacement at your earliest convenience.

Why Choose a DieHard Battery for Your 911?

We know what’s best for your Porsche 911, which is why we carry just that. You need a reliable, durable and powerful battery in even some of the toughest conditions. DieHard 911 batteries surpass expectations using the latest innovative technology to fuel the expanding power needs of modern vehicles Don't call a DieHard battery ordinary. It's an extraordinary battery. Go with a DieHard battery for your 911 and get behind the wheel with confidence. Why? Because performance will be there when you need it most. That's the kind of battery we deliver.

Caring for a New Porsche 911 Battery

Have you recently had a fresh battery installed in your Porsche 911? 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 cutting back on unnecessary short trips, keeping your battery posts clean, and not using electronics such as the radio and power outlets when the engine is off.