Why won’t my LS400 battery hold a charge?

A battery that won't hold a charge is almost as good as dead. The battery might be old. Or, you’ve been leaving the doors slightly open and the cabin light at night. Stop by for a complimentary battery check at your favorite Firestone Complete Auto Care and get a handle on your car battery’s health.

What happens to my old LS400 battery?

We recycle it! Nearly 100% of all lead-acid batteries are recyclable.

How much will replacing my Lexus LS400’s battery cost if I get a DieHard battery?

You can find affordable LS400 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?

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

Why is there white, crusty buildup on my LS400’s battery post?

If you notice white, crusty stuff around the battery terminals of your LS400, 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 LS400’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.

How do I clean a corroded LS400 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 purchase LS400 batteries near me?

When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install LS400 batteries at our stores nationwide — and our Firestone Direct mobile vans can provide convenient on-site battery services. Learn more about our mobile battery services and book an appointment.

1991 Lexus LS400 Batteries

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Lexus LS400 Batteries Near You

The middle of nowhere is the wrong place to have a weak battery. Shop replacement batteries for 1991 Lexus LS400 today and schedule a quick installation at Firestone Complete Auto Care.

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1991 Lexus LS400 Battery Replacement & Size

Not sure what battery to get for your Lexus LS400? Use the following chart to find information on Lexus LS400 battery size and cold cranking amps.

Battery	Engine	Warranty		Cold Cranking Amps
27F-3	V8/4.0L	Replacement 24 months	Performance months	710
35-2	V8/4.0L	Replacement 36 months	Performance months	640
24F-RP	V8/4.0L	Replacement 48 months	Performance months	750

BATTERIES
V8/4.0L - Battery: 27F-3 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 710
V8/4.0L - Battery: 35-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 640
V8/4.0L - Battery: 24F-RP - Warranty: Replacement 48 months, Performance months - Cold Cranking Amps: 750

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Buy the Right Battery for Your Lexus LS400

Your LS400 doesn't have an expiration date, but its battery does. The average car battery lasts three to five years. Don’t get stranded by your LS400’s car battery. Replace it regularly instead! Watch for signs that your current battery is getting too old or too weak. A slow engine crank, an illuminated battery or check engine light, swollen battery case, corroded battery posts, or faded headlights can all signal that your battery needs attention.

Or, you can get a complimentary battery check at your nearest Firestone Complete Auto Care. With best-in-class tools we can tell you how much "life" is left in your battery. Visit us for a complimentary battery check and, if necessary, a battery replacement to help keep your 1991 Lexus LS400 running! Car batteries are one of our many specialties! Our technicians are familiar with Lexus-specific recommendations for LS400 battery CCAs and reserve capacity. Get help figuring out the battery size that fits your car perfectly, and schedule a weekday or weekend battery replacement service for your car.

Firestone Has DieHard Batteries for LS400s

We know what’s best for your Lexus LS400, which is why we carry just that. Your LS400 needs a reliable, durable and powerful battery that can handle most extreme environments and weather conditions. DieHard batteries shatter expectations using the latest innovative technology to satisfy the growing power needs of modern vehicles A DieHard battery isn't an ordinary car battery. It's extraordinary. Buy a DieHard battery for your Lexus LS400 and get behind the wheel with confidence. Why? Because performance will be there when you're counting on it. That's the kind of battery we deliver.

Caring for a New Lexus LS400 Battery

Have you recently had a fresh battery installed in your Lexus LS400? Congrats! You can give your new battery a head start with proper care and attention. Give your new battery a hand by decreasing the number of short trips you take, keeping your battery posts clean, and not playing the radio or using other electronics when the engine is turned off.

Commonly Asked LS400 Battery Questions

Firestone Complete Auto Care has answers to your top car battery questions. If you have battery questions that are Lexus LS400-specific, visit your nearest store. Our technicians are happy to help.

Why won’t my LS400 battery hold a charge? A battery that won't hold a charge is almost as good as dead. The battery might be old. Or, you’ve been leaving the doors slightly open and the cabin light at night. Stop by for a complimentary battery check at your favorite Firestone Complete Auto Care and get a handle on your car battery’s health.
What happens to my old LS400 battery? We recycle it! Nearly 100% of all lead-acid batteries are recyclable.
How much will replacing my Lexus LS400’s battery cost if I get a DieHard battery? You can find affordable LS400 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? A car battery normally lasts three to five years, but this number can vary based on battery type, your driving habits, and battery maintenance.
Why is there white, crusty buildup on my LS400’s battery post? If you notice white, crusty stuff around the battery terminals of your LS400, 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 LS400’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.
How do I clean a corroded LS400 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 purchase LS400 batteries near me? When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install LS400 batteries at our stores nationwide — and our Firestone Direct mobile vans can provide convenient on-site battery services. Learn more about our mobile battery services and book an appointment.