Why won't my XJ8 battery stay charged?

A battery is in its final hour when it will no longer hold a charge. It may be getting old. Or, you may have been leaving your car doors ajar and the lights on overnight. Stop by for a complimentary battery check at your nearest Firestone Complete Auto Care to learn more about the state of your battery.

What do you do with my old XJ8 battery?

We recycle it, taking care of both your car and the Earth.

How much will replacing my Jaguar XJ8’s battery cost if I get a DieHard battery?

You can find affordable XJ8 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 can I expect my car battery to 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.

What is the white, crusty substance accumulating on my XJ8’s battery post?

The white, crusty stuff that can accumulate around XJ8 car battery terminals is called corrosion. It is caused by a chemical reaction between the battery acid and the air, which creates a white, powdery substance that can build up on the terminals over time. Corrosion can interfere with the flow of electricity between the battery post and the car's electrical system, sometimes leading to poor electrical performance, difficulty starting, and even premature battery failure.

How do I clean corrosion off my XJ8 vehicle battery?

To help extend the life of your battery, you should routinely inspect and clean the terminals using a baking soda and water mix, wire brush, and rag. Be sure to disconnect the battery cables before cleaning and check your XJ8 owner’s manual for instructions on how to do so.

Where can I purchase XJ8 batteries near me?

At Firestone Complete Auto Care, we make it easy to get a new car battery. Our stores sell and install XJ8 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 2004 Jaguar XJ8

Get a New Jaguar Battery

Get a Battery for Your Jaguar XJ8

Don't let a failing battery slow you down. Shop replacement batteries for 2004 Jaguar XJ8s today and schedule a quick installation at Firestone Complete Auto Care.

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The Right Battery Size for a 2004 Jaguar XJ8

Not sure what battery to get for your Jaguar XJ8? Check the chart to find the right car battery size and cold cranking amps for your XJ8.

Battery	Engine	Warranty		Cold Cranking Amps
93-1	V8/4.2L	Replacement 24 months	Performance months	825
49H8	V8/4.2L	Replacement 36 months	Performance months	900
H8-AGM	V8/4.2L	Replacement 36 months	Performance months	900

BATTERIES
V8/4.2L - Battery: 93-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 825
V8/4.2L - Battery: 49H8 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 900
V8/4.2L - Battery: H8-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 900

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Buy the Right Battery for Your Jaguar XJ8

Your XJ8 doesn't have an expiration date, but its battery does. Generally, car batteries last from three to five years. Don’t get stranded by your XJ8’s car battery. Replace it regularly instead! Pay attention to clues that your battery is on its way out. A sluggish engine start, an illuminated battery or check engine light, swollen battery case, corroded battery terminals, or faded headlights can all signal that your battery is on its last leg.

Plus, at Firestone Complete Auto Care, we’ll test your battery for free. Our equipment can see how much charge is left in your battery. Stop by for a free battery test and, if needed, a replacement battery for your 2004 Jaguar XJ8. Car batteries are one of our many specialties! Our expert technicians understand Jaguar service recommendations for XJ8 battery CCAs and reserve capacity. Get help choosing the battery size that fits your car perfectly, and schedule an appointment today for a quick car battery replacement.

Is There a DieHard Battery for XJ8s?

Your Jaguar XJ8 deserves the best, which is why we exclusively carry the best. Your XJ8 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 requirements of new vehicles and their accessories. A DieHard battery isn't an ordinary car battery. It's extraordinary. Choose a DieHard battery for your Jaguar XJ8 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 XJ8’s New Battery Last

Have you recently had a fresh battery installed in your Jaguar XJ8? Good thinking! You can give your new battery a head start with proper care and attention. turning off all of the lights when you leave your vehicle, decreasing the number of short trips you take, keeping the battery posts corrosion-free, and not using electronics such as the radio and power outlets when the engine is off.

Commonly Asked XJ8 Battery Questions

Firestone Complete Auto Care has answers to your top car battery questions. If you have a battery question that's unique to your Jaguar XJ8 battery, visit your nearest store. Our expert techs have the answers you need.

Why won't my XJ8 battery stay charged? A battery is in its final hour when it will no longer hold a charge. It may be getting old. Or, you may have been leaving your car doors ajar and the lights on overnight. Stop by for a complimentary battery check at your nearest Firestone Complete Auto Care to learn more about the state of your battery.
What do you do with my old XJ8 battery? We recycle it, taking care of both your car and the Earth.
How much will replacing my Jaguar XJ8’s battery cost if I get a DieHard battery? You can find affordable XJ8 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 can I expect my car battery to 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.
What is the white, crusty substance accumulating on my XJ8’s battery post? The white, crusty stuff that can accumulate around XJ8 car battery terminals is called corrosion. It is caused by a chemical reaction between the battery acid and the air, which creates a white, powdery substance that can build up on the terminals over time. Corrosion can interfere with the flow of electricity between the battery post and the car's electrical system, sometimes leading to poor electrical performance, difficulty starting, and even premature battery failure.
How do I clean corrosion off my XJ8 vehicle battery? To help extend the life of your battery, you should routinely inspect and clean the terminals using a baking soda and water mix, wire brush, and rag. Be sure to disconnect the battery cables before cleaning and check your XJ8 owner’s manual for instructions on how to do so.
Where can I purchase XJ8 batteries near me? At Firestone Complete Auto Care, we make it easy to get a new car battery. Our stores sell and install XJ8 batteries, and our Firestone Direct mobile vans can even come to you for added convenience. Check out our mobile battery services to learn more.