1990 Porsche 911 Car Batteries

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Porsche 911 Batteries Near You

Don't let a failing battery slow you down. Shop replacement batteries for 1990 Porsche 911s today and schedule a quick installation at Firestone Complete Auto Care.

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The Right Battery Size for a 1990 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
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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Buy the Right Battery for Your Porsche 911

Sadly, your Porsche 911 won't last forever. Neither will its battery. 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 sluggish engine start, an illuminated battery or check engine light, bloated battery case, corroded battery terminals, or dim headlights can all be signs that your battery is waving goodbye.

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. Drop in for a free battery check and, if necessary, a battery replacement to help keep your 1990 Porsche 911 running! Car batteries are only one of our many strong suits. Our expert technicians understand Porsche service recommendations for 911 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.

Is There a DieHard Battery for 911s?

We only want what’s best for your Porsche 911, which is why we exclusively carry the best. Your vehicle needs a reliable, durable and powerful battery that can handle most extreme environments and weather conditions. DieHard batteries go above and beyond using the latest innovative technology to meet the growing power demands of modern vehicles They're no ordinary battery, they're extraordinary. Buy a DieHard battery for your Porsche 911 and have the peace of mind 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

Did you recently have a new 1990 Porsche 911 car battery installed? Congrats! Now, help it last longer and stay charged by caring for it from the get-go. ensuring all the lights are turned off before you leave the car, limiting short trips, keeping the battery posts corrosion-free, and not using electronics such as the radio and power outlets when the engine is off.

Commonly Asked 911 Battery Questions

Turn to Firestone Complete Auto Care for answers to all your car battery questions. If you have a 911-specific battery question, visit your nearest store. Our expert techs have the answers you need.

  • Why won’t my 911 battery hold a charge? A car battery that needs to be jump-started every time is as good as dead. It may be getting old. Or, you may have been leaving your car doors ajar and the lights on overnight. Stop by for a free battery test at your nearest Firestone Complete Auto Care to learn more about the state of your battery.
  • What do you do with my dead 911 battery? We recycle it, taking care of both your car and the Earth.
  • How much will replacing my Porsche 911’s battery cost if I get a DieHard battery? Porsche 911 batteries can be affordable, especially when there's an available battery coupon. The best part is every DieHard battery comes with a free replacement warranty and extra coverage with DieHard Assurance.
  •  How long do car batteries last? The typical 12-volt car battery may last three to five years, depending on the type of battery, the driving conditions, and how well the battery is maintained.
  • Why is there white, flaky stuff around my 911’s battery post? The white, flaky stuff that can build up around your 911’s battery terminals is known as corrosion. Acid leaking from your vehicle’s battery post can have a chemical reaction with the air, leading to an accumulation of the white, powdery substance over time. Corrosion can affect the flow of electricity between your battery and the electrical system in your 911, possibly causing issues with electrical performance and starting. If left unaddressed for long enough, it may even cause your battery to prematurely fail.
  •  How do I clean corrosion off my 911 vehicle battery? You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your 911 owner's manual to learn how to disconnect the battery cables. After disconnecting the cables, use a mixture of water and baking soda, a wire brush, and a rag to carefully clean the terminals.
  • Where can I purchase 911 batteries near me? When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install 911 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.