Why won't my 911 battery stay charged?

A battery is in its final hour when it will no longer hold a charge. The battery might be old. Or, you may have a habit of leaving your car doors open and the cabin light at night. Stop in for a free battery check at your local 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 do DieHard batteries cost for your Porsche 911?

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 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.

What is the white, crusty substance accumulating on my 911’s battery post?

If you notice white, crusty stuff around the battery terminals of your 911, 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 911’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.

How do I remove corrosion from my 911 car 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 carries 911 batteries near me?

At Firestone Complete Auto Care, we make it easy to get a new car battery. Our stores sell and install 911 batteries, and our Firestone Direct mobile vans can even come to you for added convenience. Check out our mobile battery services to learn more.

2002 Porsche 911 Car Batteries

Get a New Porsche Battery

Get a New Porsche 911 Battery

The middle of nowhere is the wrong place to have a weak battery. Shop replacement batteries for 2002 Porsche 911 today and schedule a quick installation at Firestone Complete Auto Care.

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Battery Size & Replacement for 2002 Porsche 911

Need more info about Porsche 911 batteries? Use this chart to find the right battery size and CCAs for your Porsche 911.

Battery	Engine	Warranty		Cold Cranking Amps
T6	H6/3.4L	Replacement 36 months	Performance months	720
H7-AGM	H6/3.4L	Replacement 36 months	Performance months	850
94RH7	H6/3.6L	Replacement 36 months	Performance months	800
H7-AGM	H6/3.6L	Replacement 36 months	Performance months	850

BATTERIES
H6/3.4L - Battery: T6 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 720
H6/3.4L - Battery: H7-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 850
H6/3.6L - Battery: 94RH7 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
H6/3.6L - Battery: H7-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 850

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Buying a Replacement Battery for Porsche 911

Your 911 doesn't have an expiration date, but its battery does. The average car battery lasts three to five years. Don’t get stranded by your 911’s car battery. Replace it regularly instead! Look out for symptoms of a faulty car battery. A slow engine crank, an illuminated check engine light or battery signal, swollen battery case, corroded battery terminals, or faded headlights may all indicate 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. Stop by for a free battery test and, if needed, get your Porsche 911 a replacement battery. Automotive batteries are just one of our many areas of expertise. Our expert technicians understand Porsche service recommendations for 911 car batteries’ reserve capacities and cold cranking amps. 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 exclusively carry the best. Your 911 needs a reliable, durable and powerful battery that can handle most extreme environments and weather conditions. DieHard batteries shatter expectations using the latest innovative technology to satisfy the increasing power requirements of new vehicles and their accessories. They're no ordinary battery, they're extraordinary. Choose a DieHard battery for your Porsche 911 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 Porsche 911 Battery

Got a new car battery installed in your 2002 Porsche 911? Good thinking! Now, help it last longer and stay charged by caring for it from the get-go. You can take care of your battery by limiting short trips, keeping your battery posts clean, and avoiding radio and electronic component use when the engine is off.