Why won't my XJ6 battery stay charged?

A battery that won't hold a charge is almost as good as dead. It may be getting old. Or, you may have been leaving your car doors ajar and the dome lights on during the 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 XJ6 battery?

We’ll recycle your car battery for you!

How much do DieHard batteries cost for your Jaguar XJ6?

You can find affordable XJ6 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 often should I replace my car battery?

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 XJ6’s battery post?

If you notice white, crusty stuff around the battery terminals of your XJ6, 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 XJ6’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.

How do I clean a corroded XJ6 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.

Where can I find a battery for my XJ6?

Your local Firestone Complete Auto Care sells and installs XJ6 batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.

1987 Jaguar XJ6 Car Batteries

Get a New Jaguar Battery

Get a New Jaguar XJ6 Battery

Don't let a failing battery slow you down. Shop replacement batteries for 1987 Jaguar XJ6s today and schedule a quick installation at Firestone Complete Auto Care.

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1987 Jaguar XJ6 Battery Replacement & Size

Not sure what battery to get for your Jaguar XJ6? Check the chart to find the right car battery size and cold cranking amps for your XJ6.

Battery	Engine	Warranty		Cold Cranking Amps
34FT-2	L6/3.6L	Replacement 36 months	Performance months	800
34-AGM	L6/3.6L	Replacement 36 months	Performance months	740
34FT-2	L6/4.2L	Replacement 36 months	Performance months	800
34-AGM	L6/4.2L	Replacement 36 months	Performance months	740

BATTERIES
L6/3.6L - Battery: 34FT-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
L6/3.6L - Battery: 34-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740
L6/4.2L - Battery: 34FT-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
L6/4.2L - Battery: 34-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740

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Buy the Right Battery for Your Jaguar XJ6

Your XJ6 doesn't have an expiration date, but its battery does. 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 Jaguar XJ6 stranded. Watch for signs that your current battery is getting too old or too weak. A sluggish engine start, an illuminated check engine light or battery signal, swollen battery case, corrosion-covered posts, or weak lights may all indicate that your battery needs attention.

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 necessary, a battery replacement to help keep your 1987 Jaguar XJ6 running! Car batteries are one of our many specialties! Our technicians are well-acquainted with Jaguar’s service specs for XJ6 car batteries’ reserve capacities and cold cranking amps. Get help identifying the type and size of battery that matches your vehicle, and schedule a fast car battery replacement at your earliest convenience.

Is There a DieHard Battery for XJ6s?

We know what’s best for your Jaguar XJ6, which is why we exclusively carry the best. You need a reliable, durable and powerful battery in even some of the toughest conditions. DieHard batteries shatter expectations and house the latest technology to satisfy the growing power requirements of new vehicles. Don't call a DieHard battery ordinary. It's an extraordinary battery. Go with a DieHard battery for your XJ6 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 XJ6’s New Battery Last

Have you recently had a fresh battery installed in your Jaguar XJ6? Congrats! Give your new car battery the best start with proper care. ensuring all the lights are turned off before you leave the car, decreasing the number of short trips you take, keeping your battery posts clean, and not using electronics such as the radio and power outlets when the engine is off.

Commonly Asked XJ6 Battery Questions

Turn to Firestone Complete Auto Care for answers to all your car battery questions. If you have battery questions that are Jaguar XJ6-specific, pay us a visit. Our technicians are happy to help.

Why won't my XJ6 battery stay charged? A battery that won't hold a charge is almost as good as dead. It may be getting old. Or, you may have been leaving your car doors ajar and the dome lights on during the 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 XJ6 battery? We’ll recycle your car battery for you!
How much do DieHard batteries cost for your Jaguar XJ6? You can find affordable XJ6 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 often should I replace my car battery? 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 XJ6’s battery post? If you notice white, crusty stuff around the battery terminals of your XJ6, 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 XJ6’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.
How do I clean a corroded XJ6 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.
Where can I find a battery for my XJ6? Your local Firestone Complete Auto Care sells and installs XJ6 batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.