Why won’t my Boxster 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 a habit of leaving your car doors open and the dome lights on during the night. Stop by for a complimentary battery check at your local Firestone Complete Auto Care and learn more about your battery's charge.

What do you do with my old Boxster battery?

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

How much do DieHard batteries cost for your Porsche Boxster?

Porsche Boxster 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 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 stuff around my Boxster’s battery post?

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

How do I clean a corroded Boxster battery terminal?

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 carries Boxster batteries near me?

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

Car Batteries for 2009 Porsche Boxster

Get a New Porsche Battery

Get a New Porsche Boxster Battery

The middle of nowhere is the wrong place to have a weak battery. Shop replacement batteries for 2009 Porsche Boxster today and schedule a quick installation at Firestone Complete Auto Care.

Shop Batteries

The Right Battery Size for a 2009 Porsche Boxster

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

Battery	Engine	Warranty		Cold Cranking Amps
94RH7	H6/3.4L	Replacement 36 months	Performance months	800
H7-AGM	H6/3.4L	Replacement 36 months	Performance months	850
94RH7	H6/2.9L	Replacement 36 months	Performance months	800
H7-AGM	H6/2.9L	Replacement 36 months	Performance months	850

BATTERIES
H6/3.4L - Battery: 94RH7 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
H6/3.4L - Battery: H7-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 850
H6/2.9L - Battery: 94RH7 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
H6/2.9L - Battery: H7-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 850

Schedule an Appointment

Buying a Replacement Battery for Porsche Boxster

Sadly, your Porsche Boxster 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 Boxster stranded. Pay attention to clues that your battery is on its way out. A lagging starter, an illuminated check engine light or battery signal, bloated battery case, corroded battery posts, or weak lights can all signal that your battery is waving goodbye.

Or, you can get a complimentary battery check at your nearest Firestone Complete Auto Care. Our equipment can see how much charge is left in your battery. Stop by for a free battery test and, if needed, get your Porsche Boxster a replacement battery. Car batteries are only one of our many strong suits. Our expert technicians understand Porsche service recommendations for Boxster car batteries’ reserve capacities and cold cranking amps. Get help identifying the type and size of battery that's best for your Boxster, and schedule a fast car battery replacement at your earliest convenience.

Why Choose a DieHard Battery for Your Boxster?

We know what’s best for your Porsche Boxster, which is why we exclusively carry the best. Your vehicle needs a reliable, durable and powerful battery in even some of the toughest conditions. DieHard Boxster batteries surpass expectations using the latest innovative technology to fuel the growing power requirements of new vehicles. A DieHard battery isn't an ordinary car battery. It's extraordinary. Go with a DieHard battery for your Boxster and get behind the wheel with confidence. Why? Because performance will be there when you're counting on it. That's the kind of battery we deliver.

After Buying 2009 Porsche Boxster Battery

Have you recently had a fresh battery installed in your Porsche Boxster? Great job! Give your new car battery the best start with proper care. You can take care of your battery by cutting back on unnecessary short trips, cleaning your battery posts, and avoiding radio and electronic component use when the engine is off.