Why won't my G8 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 may have a habit of leaving your car doors open and the cabin light at night. Stop by for a free battery test at your local Firestone Complete Auto Care and learn more about your battery's charge.

What do you do with my dead G8 battery?

We’ll recycle your car battery for you!

How much do DieHard batteries cost for your Pontiac G8?

Pontiac G8 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.

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 substance accumulating on my G8’s battery post?

A chemical reaction between battery acid and the air can cause a white, crusty buildup to form on the terminals of your G8 car battery. This buildup — known as corrosion — can impede the flow of electricity and cause a range of issues, from poor performance to premature battery failure.

How do I clean corrosion off my G8 vehicle battery?

Regularly inspecting and cleaning your battery terminals will help keep your G8’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 G8?

You can shop for G8 batteries at your local Firestone Complete Auto Care, and our expert technicians will even handle the installation. Don’t have time to visit our store? Our Firestone Direct mobile vans can come to you for battery installations! Learn more about our mobile battery services.

2008 Pontiac G8 Batteries

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Pontiac G8 Batteries Near You

Don't let a failing battery slow you down. Shop replacement batteries for 2008 Pontiac G8s today and schedule a quick installation at Firestone Complete Auto Care.

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The Right Battery Size for a 2008 Pontiac G8

Need more info about Pontiac G8 batteries? Check the chart to find the right car battery size and cold cranking amps for your G8.

Battery	Engine	Warranty		Cold Cranking Amps
94RH7	V6/3.6L	Replacement 36 months	Performance months	800
H7-AGM	V6/3.6L	Replacement 36 months	Performance months	850
94RH7	V8/6.0L	Replacement 36 months	Performance months	800
H7-AGM	V8/6.0L	Replacement 36 months	Performance months	850

BATTERIES
V6/3.6L - Battery: 94RH7 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
V6/3.6L - Battery: H7-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 850
V8/6.0L - Battery: 94RH7 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
V8/6.0L - Battery: H7-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 850

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Shopping for Pontiac G8 Car Batteries

Your G8 doesn't have an expiration date, but its battery does. On average, auto batteries last anywhere from three to five years. You want to replace your 2008 Pontiac G8 battery before it fails and leaves you stranded. Pay attention to clues that your battery is on its way out. A slow engine crank, a blinking battery or check engine light, swollen battery case, corrosion-covered posts, or weak lights can all signal that your battery is waving goodbye.

You can also get a Free Battery Test at your local Firestone Complete Auto Care. With computerized testing we can see how much charge is left in your battery. Visit us for a complimentary battery check and, if necessary, a battery replacement to help keep your 2008 Pontiac G8 running! Automotive batteries are just one of our many areas of expertise. Our expert technicians understand Pontiac service recommendations for G8 battery CCAs and reserve capacity. Get help identifying the type and size of battery that fits your car perfectly, and schedule an appointment today for a quick car battery replacement.

Find the Right DieHard Battery for Your G8

Your Pontiac G8 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 batteries shatter expectations and house the latest technology to meet the expanding power requirements of new vehicles and their accessories. They're no ordinary battery, they're extraordinary. Choose a DieHard battery for your Pontiac G8 and drive with confidence knowing that performance will be there when you're counting on it. That’s why you should choose batteries from Firestone Complete Auto Care.

After Buying 2008 Pontiac G8 Battery

Got a new car battery installed in your 2008 Pontiac G8? Congrats! Give your new car battery the best start with proper care. Give your new battery a hand by cutting back on unnecessary short trips, keeping your battery posts clean, and not playing the radio or using other electronics when the engine is turned off.