Why doesn’t my 928 battery stay charged?

A car battery that needs to be jump-started every time is as good as dead. It may be getting old. Or, you’ve been leaving the doors slightly open and the lights on overnight. Stop by for a free battery test at your favorite Firestone Complete Auto Care and learn more about your battery's charge.

What do you do with my old 928 battery?

We’ll recycle your car battery for you!

What’s the cost of DieHard batteries for Porsche 928s?

You can find affordable 928 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 do car batteries last?

A car battery normally lasts three to five years, but this number can vary based on battery type, your driving habits, and battery maintenance.

Why is there white, crusty buildup on my 928’s battery post?

If you notice white, crusty stuff around the battery terminals of your 928, 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 928’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.

What do I do about corrosion on my 928 car battery?

Regularly inspecting and cleaning your battery terminals will help keep your 928’s electrical system running smoothly. Before cleaning, reference your owner’s manual for instructions on how to disconnect the battery cables. Once the cables have been disconnected, gently clean the terminals with a mixture of water and baking soda, a wire brush, and a rag.

Where can I find a battery for my 928?

When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install 928 batteries at our stores nationwide — and our Firestone Direct mobile vans can provide convenient on-site battery services. Learn more about our mobile battery services and book an appointment.

1984 Porsche 928 Car Batteries

Get a New Porsche Battery

Get a New Porsche 928 Battery

Don't let a failing battery slow you down. Shop replacement batteries for 1984 Porsche 928s today and schedule a quick installation at Firestone Complete Auto Care.

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Battery Size & Replacement for 1984 Porsche 928

Need more info about Porsche 928 batteries? Check the chart to find the right car battery size and cold cranking amps for your 928.

Battery	Engine	Warranty		Cold Cranking Amps
48H6	V8/4.7L	Replacement 36 months	Performance months	730
H8-AGM	V8/4.7L	Replacement 36 months	Performance months	900

BATTERIES
V8/4.7L - Battery: 48H6 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 730
V8/4.7L - Battery: H8-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 900

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Shopping for Porsche 928 Car Batteries

Sadly, your Porsche 928 won't last forever. Neither will its battery. Generally, car batteries last from three to five years. Check your battery regularly and replace it as needed so it doesn’t leave you and your Porsche 928 stranded. Look out for symptoms of a faulty car battery. A sluggish engine start, a blinking battery or check engine light, bloated battery case, corrosion-covered posts, or weak lights may all indicate that your battery is on its last leg.

Or, you can get a complimentary battery check at your nearest Firestone Complete Auto Care. With computerized testing we can see how much charge is left in your battery. Drop in for a free battery check and, if needed, a replacement battery for your 1984 Porsche 928. Car batteries are one of our many specialties! Our expert technicians understand Porsche service recommendations for 928 battery CCAs and reserve capacity. Get help choosing the battery size that matches your vehicle, and schedule an appointment today for a quick car battery replacement.

Find the Right DieHard Battery for Your 928

Your Porsche 928 deserves the best, which is why we only carry top-of-the-line replacement parts and batteries. Your vehicle needs a reliable, durable and powerful battery in extremely hot and cold environments. DieHard 928 batteries surpass expectations using the latest innovative technology to meet the growing power needs of modern vehicles They're no ordinary battery, they're extraordinary. Buy a DieHard battery for your Porsche 928 and drive with confidence knowing that performance will be there when you need it most. That’s why you should choose batteries from Firestone Complete Auto Care.

Making Your 928’s New Battery Last

Have you recently had a fresh battery installed in your Porsche 928? Great job! Give your new car battery the best start with proper care. Give your new battery a hand by decreasing the number of short trips you take, cleaning your battery posts, and not using electronics such as the radio and power outlets when the engine is off.

Answers to Your 928 Car Battery Questions

Get answers to common car battery questions, from Firestone Complete Auto Care. If you have a 928-specific battery question, visit your nearest store. Our expert techs have the answers you need.

Why doesn’t my 928 battery stay charged? A car battery that needs to be jump-started every time is as good as dead. It may be getting old. Or, you’ve been leaving the doors slightly open and the lights on overnight. Stop by for a free battery test at your favorite Firestone Complete Auto Care and learn more about your battery's charge.
What do you do with my old 928 battery? We’ll recycle your car battery for you!
What’s the cost of DieHard batteries for Porsche 928s? You can find affordable 928 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 do car batteries last? A car battery normally lasts three to five years, but this number can vary based on battery type, your driving habits, and battery maintenance.
Why is there white, crusty buildup on my 928’s battery post? If you notice white, crusty stuff around the battery terminals of your 928, 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 928’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.
What do I do about corrosion on my 928 car battery? Regularly inspecting and cleaning your battery terminals will help keep your 928’s electrical system running smoothly. Before cleaning, reference your owner’s manual for instructions on how to disconnect the battery cables. Once the cables have been disconnected, gently clean the terminals with a mixture of water and baking soda, a wire brush, and a rag.
Where can I find a battery for my 928? When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install 928 batteries at our stores nationwide — and our Firestone Direct mobile vans can provide convenient on-site battery services. Learn more about our mobile battery services and book an appointment.