Why doesn’t my F-150 battery stay charged?

A car battery that needs to be jump-started every time is 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 favorite Firestone Complete Auto Care and get a handle on your car battery’s health.

What do you do with my old F-150 battery?

We’ll recycle your car battery for you!

How much will replacing my Ford F-150’s battery cost if I get a DieHard battery?

Get affordable prices on Ford F-150 batteries by using one of our limited-time battery deals. Plus, all DieHard car batteries come with a free replacement warranty and extra coverage with DieHard Assurance.

What is the average lifespan of a 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.

Why is there white, flaky stuff around my F-150’s battery post?

The white, crusty stuff that can accumulate around F-150 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 F-150 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 F-150 owner’s manual for instructions on how to do so.

Where can I find a battery for my F-150?

When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install F-150 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 Ford F-150 Car Batteries

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Ford F-150 Batteries Near You

Don’t let a dead battery stop you. Shop replacement car batteries for your 1991 Ford F-150 at Firestone Complete Auto Care.

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Battery Size & Replacement for 1991 Ford F-150

Not sure what battery to get for your Ford F-150? Check the chart to find the right car battery size and cold cranking amps for your F-150.

Battery	Engine	Warranty		Cold Cranking Amps
65-1	L6/4.9L	Replacement 24 months	Performance months	850
65-2	L6/4.9L	Replacement 36 months	Performance months	850
65-AGM	L6/4.9L	Replacement 36 months	Performance months	750
65-1	V8/5.0L	Replacement 24 months	Performance months	850
65-2	V8/5.0L	Replacement 36 months	Performance months	850
65-AGM	V8/5.0L	Replacement 36 months	Performance months	750
65-1	V6/3.8L	Replacement 24 months	Performance months	850
65-2	V6/3.8L	Replacement 36 months	Performance months	850
65-AGM	V6/3.8L	Replacement 36 months	Performance months	750
65-1	V8/5.8L	Replacement 24 months	Performance months	850
65-2	V8/5.8L	Replacement 36 months	Performance months	850
65-AGM	V8/5.8L	Replacement 36 months	Performance months	750

BATTERIES
L6/4.9L - Battery: 65-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 850
L6/4.9L - Battery: 65-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 850
L6/4.9L - Battery: 65-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 750
V8/5.0L - Battery: 65-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 850
V8/5.0L - Battery: 65-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 850
V8/5.0L - Battery: 65-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 750
V6/3.8L - Battery: 65-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 850
V6/3.8L - Battery: 65-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 850
V6/3.8L - Battery: 65-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 750
V8/5.8L - Battery: 65-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 850
V8/5.8L - Battery: 65-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 850
V8/5.8L - Battery: 65-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 750

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Buy the Right Battery for Your Ford F-150

Sadly, your Ford F-150 won't last forever. Neither will its battery. The average car battery lasts three to five years. Check your battery regularly and replace it as needed so it doesn’t leave you and your Ford F-150 stranded. Watch for signs that your current battery is getting too old or too weak. A lagging starter, a blinking battery or check engine light, bloated battery case, corrosion-covered posts, and subpar electrical performance can all be signs that your battery is waving goodbye.

Plus, at Firestone Complete Auto Care, we’ll test your battery for free. 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 Ford F-150 running! Car batteries are one of our many specialties! Our technicians are familiar with Ford-specific recommendations for F-150 battery cold cranking amps and reserve capacity. Get help figuring out 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 F-150s?

We know what’s best for your Ford F-150, which is why we only carry top-of-the-line replacement parts and batteries. Your vehicle needs a reliable, durable and powerful battery in even some of the toughest conditions. DieHard F-150 batteries surpass expectations and house the latest technology to fuel the growing power needs of new vehicles. A DieHard battery isn't an ordinary car battery. It's extraordinary. Choose a DieHard battery for your Ford F-150 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 F-150’s New Battery Last

Got a new car battery installed in your 1991 Ford F-150? Good thinking! You can give your new battery a head start with proper care and attention. ensuring all the lights are turned off before you leave the car, cutting back on unnecessary short trips, keeping your battery posts clean, and not using electronics such as the radio and power outlets when the engine is off.

Answers to Your F-150 Car Battery Questions

Turn to Firestone Complete Auto Care for answers to all your car battery questions. If you have a F-150-specific battery question, pay us a visit. Our expert techs have the answers you need.

Why doesn’t my F-150 battery stay charged? A car battery that needs to be jump-started every time is 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 favorite Firestone Complete Auto Care and get a handle on your car battery’s health.
What do you do with my old F-150 battery? We’ll recycle your car battery for you!
How much will replacing my Ford F-150’s battery cost if I get a DieHard battery? Get affordable prices on Ford F-150 batteries by using one of our limited-time battery deals. Plus, all DieHard car batteries come with a free replacement warranty and extra coverage with DieHard Assurance.
What is the average lifespan of a 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.
Why is there white, flaky stuff around my F-150’s battery post? The white, crusty stuff that can accumulate around F-150 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 F-150 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 F-150 owner’s manual for instructions on how to do so.
Where can I find a battery for my F-150? When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install F-150 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.