Why doesn’t my XJ12 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 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 favorite Firestone Complete Auto Care and learn more about your battery's charge.

What happens to my old XJ12 battery?

We’ll recycle your car battery for you!

How much do DieHard batteries cost for your Jaguar XJ12?

You can find affordable XJ12 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.

Why is there white, crusty buildup on my XJ12’s battery post?

If you notice white, crusty stuff around the battery terminals of your XJ12, 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 XJ12’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.

What do I do about corrosion on my XJ12 car 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 XJ12 owner’s manual for instructions on how to do so.

Where can I find a battery for my XJ12?

At Firestone Complete Auto Care, we make it easy to get a new car battery. Our stores sell and install XJ12 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 1994 Jaguar XJ12

Get a New Jaguar Battery

Get a Battery for Your Jaguar XJ12

Don’t let a dead battery stop you. Shop replacement car batteries for your 1994 Jaguar XJ12 at Firestone Complete Auto Care.

Shop Batteries

Battery Size & Replacement for 1994 Jaguar XJ12

Need more info about Jaguar XJ12 batteries? Check the chart to find the right car battery size and cold cranking amps for your XJ12.

Battery	Engine	Warranty		Cold Cranking Amps
47H5	V12/6.0L	Replacement 36 months	Performance months	650
H5-AGM	V12/6.0L	Replacement 36 months	Performance months	680

BATTERIES
V12/6.0L - Battery: 47H5 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 650
V12/6.0L - Battery: H5-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 680

Schedule an Appointment

Shopping for Jaguar XJ12 Car Batteries

Sadly, your Jaguar XJ12 won't last forever. Neither will its battery. Generally, car batteries last from three to five years. Don’t get stranded by your XJ12’s car battery. Replace it regularly instead! Look out for symptoms of a faulty car battery. A slow engine crank, a blinking battery or check engine light, bloated battery case, corroded battery posts, or dim headlights may all indicate that your battery is on its last leg.

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. Drop in for a free battery check and, if needed, a replacement battery for your 1994 Jaguar XJ12. Car batteries are only one of our many strong suits. Our expert technicians understand Jaguar service recommendations for XJ12 car batteries’ reserve capacities and cold cranking amps. Get help identifying the type and size of battery that fits your car perfectly, and schedule a fast car battery replacement at your earliest convenience.

Firestone Has DieHard Batteries for XJ12s

We only want what’s best for your Jaguar XJ12, which is why we only carry top-of-the-line replacement parts and batteries. Your XJ12 needs a reliable, durable and powerful battery that can handle most extreme environments and weather conditions. DieHard batteries go above and beyond using state-of-the-art advancements to meet the expanding power needs of new vehicles and their accessories. They're no ordinary battery, they're extraordinary. Go with a DieHard battery for your XJ12 and have the peace of mind that performance will be there when you're counting on it. That’s why you should choose batteries from Firestone Complete Auto Care.

Caring for a New Jaguar XJ12 Battery

Did you recently have a new 1994 Jaguar XJ12 car battery installed? Great job! 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, cutting back on unnecessary short trips, cleaning your battery posts, and not using electronics such as the radio and power outlets when the engine is off.

Answers to Your XJ12 Car Battery Questions

Get answers to common car battery questions, from Firestone Complete Auto Care. If you have a battery question that's unique to your Jaguar XJ12 battery, visit your nearest store. Our technicians have the answers.

Why doesn’t my XJ12 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 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 favorite Firestone Complete Auto Care and learn more about your battery's charge.
What happens to my old XJ12 battery? We’ll recycle your car battery for you!
How much do DieHard batteries cost for your Jaguar XJ12? You can find affordable XJ12 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.
Why is there white, crusty buildup on my XJ12’s battery post? If you notice white, crusty stuff around the battery terminals of your XJ12, 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 XJ12’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.
What do I do about corrosion on my XJ12 car 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 XJ12 owner’s manual for instructions on how to do so.
Where can I find a battery for my XJ12? At Firestone Complete Auto Care, we make it easy to get a new car battery. Our stores sell and install XJ12 batteries, and our Firestone Direct mobile vans can even come to you for added convenience. Check out our mobile battery services to learn more.