Why doesn’t my XJS battery stay charged?

A car battery that needs to be jump-started every time is as good as dead. The battery might be old. Or, you’ve been leaving the doors slightly open and the dome lights on during the night. Stop by for a complimentary battery check at your nearest Firestone Complete Auto Care and get a handle on your car battery’s health.

What do you do with my dead XJS battery?

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

How much do DieHard batteries cost for your Jaguar XJS?

You can find affordable XJS 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 do car batteries last?

A car battery normally lasts three to five years, but this number can vary based on battery type, your driving habits, and battery maintenance.

What is the white, crusty substance accumulating on my XJS’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 XJS 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 a corroded XJS battery terminal?

You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your XJS 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 find a battery for my XJS?

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

Car Batteries for 1988 Jaguar XJS

Get a New Jaguar Battery

Jaguar XJS Batteries Near You

The middle of nowhere is the wrong place to have a weak battery. Shop replacement batteries for 1988 Jaguar XJS today and schedule a quick installation at Firestone Complete Auto Care.

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Battery Size & Replacement for 1988 Jaguar XJS

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

Battery	Engine	Warranty		Cold Cranking Amps
34FT-2	V12/5.3L	Replacement 36 months	Performance months	800
34-AGM	V12/5.3L	Replacement 36 months	Performance months	740

BATTERIES
V12/5.3L - Battery: 34FT-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
V12/5.3L - Battery: 34-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740

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Buy the Right Battery for Your Jaguar XJS

Your XJS doesn't have an expiration date, but its battery does. Generally, car batteries last from three to five years. You want to replace your 1988 Jaguar XJS battery before it fails and leaves you stranded. Pay attention to clues that your battery is on its way out. A slow engine crank, an illuminated check engine light or battery signal, bloated battery case, corrosion-covered posts, and subpar electrical performance can all be signs that your battery needs attention.

You can also get a Free Battery Test at your local Firestone Complete Auto Care. Our equipment can see how much charge is left in your battery. Visit us for a complimentary battery check and, if needed, get your Jaguar XJS a replacement battery. Car batteries are one of our many specialties! Our technicians are well-acquainted with Jaguar’s service specs for XJS car batteries’ reserve capacities and cold cranking amps. Get help figuring out the battery size that matches your vehicle, and schedule a fast car battery replacement at your earliest convenience.

Firestone Has DieHard Batteries for XJSs

We know what’s best for your Jaguar XJS, which is why we exclusively carry the best. Your vehicle needs a reliable, durable and powerful battery in extremely hot and cold environments. DieHard XJS batteries surpass expectations using the latest innovative technology to meet the increasing power demands of new vehicles and their accessories. Don't call a DieHard battery ordinary. It's an extraordinary battery. Choose a DieHard battery for your Jaguar XJS and have the peace of mind that your battery will perform when you need it. That's the kind of battery we deliver.

Making Your XJS’s New Battery Last

Have you recently had a fresh battery installed in your Jaguar XJS? Congrats! You can give your new battery a head start with proper care and attention. Help extend your car battery’s life by limiting short trips, keeping your battery posts clean, and not using electronics such as the radio and power outlets when the engine is off.

Commonly Asked XJS Battery Questions

Turn to Firestone Complete Auto Care for answers to all your car battery questions. If you have a battery question that's unique to your Jaguar XJS battery, stop by your nearest store. Our expert techs have the answers you need.

Why doesn’t my XJS battery stay charged? A car battery that needs to be jump-started every time is as good as dead. The battery might be old. Or, you’ve been leaving the doors slightly open and the dome lights on during the night. Stop by for a complimentary battery check at your nearest Firestone Complete Auto Care and get a handle on your car battery’s health.
What do you do with my dead XJS battery? We recycle it, taking care of both your car and the Earth.
How much do DieHard batteries cost for your Jaguar XJS? You can find affordable XJS 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 do car batteries last? A car battery normally lasts three to five years, but this number can vary based on battery type, your driving habits, and battery maintenance.
What is the white, crusty substance accumulating on my XJS’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 XJS 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 a corroded XJS battery terminal? You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your XJS 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 find a battery for my XJS? Your local Firestone Complete Auto Care sells and installs XJS batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.