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 been leaving your car doors ajar and the dome lights on during the night. Stop by for a free battery test at your local Firestone Complete Auto Care and get a handle on your car battery’s health.

What do you do with my dead 911 battery?

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

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.

What is the average lifespan of a 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 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 clean corrosion off my 911 vehicle battery?

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 sells 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.

2018 Porsche 911 Batteries

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Porsche 911 Batteries Near You

Don’t let a dead battery stop you. Shop replacement car batteries for your 2018 Porsche 911 at Firestone Complete Auto Care.

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2018 Porsche 911 Battery Replacement & Size

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
H6-AGM	H6/3.0L	Replacement 36 months	Performance months	760
H7-AGM	H6/3.8L	Replacement 36 months	Performance months	850
H7-AGM	H6/4.0L	Replacement 36 months	Performance months	850

BATTERIES
H6/3.0L - Battery: H6-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 760
H6/3.8L - Battery: H7-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 850
H6/4.0L - Battery: H7-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 850

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Shopping for Porsche 911 Car Batteries

You can pretty much drive your Porsche 911 until you don't want to anymore. But your 911'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 2018 Porsche 911 battery before it fails and leaves you stranded. Look out for symptoms of a faulty car battery. A lagging starter, an illuminated check engine light or battery signal, swollen battery case, corroded battery posts, or faded headlights can all signal that your battery is waving goodbye.

Or, you can get a complimentary battery check at your nearest Firestone Complete Auto Care. With best-in-class tools we can tell you how much "life" is left in your battery. Drop in for a free battery check and, if needed, get your Porsche 911 a replacement battery. Car batteries are one of our many specialties! Our technicians are familiar with Porsche-specific recommendations 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 only carry top-of-the-line replacement parts and batteries. You need a reliable, durable and powerful battery that can handle most extreme environments and weather conditions. DieHard 911 batteries surpass expectations using state-of-the-art advancements to meet the increasing power needs of modern vehicles They're no ordinary battery, they're extraordinary. Buy a DieHard battery for your Porsche 911 and drive with confidence knowing that performance will be there when you're counting on it. That's the kind of battery we deliver.

Making Your 911’s New Battery Last

Have you recently had a fresh battery installed in your Porsche 911? Congrats! Now, help it last longer and stay charged by caring for it from the get-go. turning off all of the lights when you leave your vehicle, limiting short trips, cleaning your battery posts, and not using electronics such as the radio and power outlets when the engine is off.