Why won’t my D21 battery hold a charge?

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 a habit of leaving your car doors open and the lights on overnight. Stop by for a complimentary battery check at your local Firestone Complete Auto Care to learn more about the state of your battery.

What happens to my old D21 battery?

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

What’s the cost of DieHard batteries for Nissan D21s?

You can find affordable D21 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 stuff around my D21’s battery post?

The white, flaky stuff that can build up around your D21’s battery terminals is known as corrosion. Acid leaking from your vehicle’s battery post can have a chemical reaction with the air, leading to an accumulation of the white, powdery substance over time. Corrosion can affect the flow of electricity between your battery and the electrical system in your D21, possibly causing issues with electrical performance and starting. If left unaddressed for long enough, it may even cause your battery to prematurely fail.

How do I clean corrosion off my D21 vehicle battery?

You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your D21 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.

Who carries D21 batteries near me?

Your local Firestone Complete Auto Care sells and installs D21 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 1994 Nissan D21

Get a New Nissan Battery

Get a New Nissan D21 Battery

Don’t let a dead battery stop you. Shop replacement car batteries for your 1994 Nissan D21 at Firestone Complete Auto Care.

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1994 Nissan D21 Battery Replacement & Size

Need more info about Nissan D21 batteries? Check the chart to find the right car battery size and cold cranking amps for your D21.

Battery	Engine	Warranty		Cold Cranking Amps
25-1	L4/2.4L	Replacement 24 months	Performance months	550
34/78-4	V6/3.0L	Replacement 24 months	Performance months	800

BATTERIES
L4/2.4L - Battery: 25-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 550
V6/3.0L - Battery: 34/78-4 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 800

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Shopping for Nissan D21 Car Batteries

Sadly, your Nissan D21 won't last forever. Neither will its battery. 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 Nissan D21 stranded. Look out for symptoms of a faulty car battery. A slow engine crank, an illuminated check engine light or battery signal, bloated battery case, corroded battery terminals, or faded headlights 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 needed, get your Nissan D21 a replacement battery. Car batteries are only one of our many strong suits. Our technicians are familiar with Nissan-specific recommendations for D21 battery cold cranking amps and reserve capacity. Get help identifying the type and size of battery that matches your vehicle, and schedule a weekday or weekend battery replacement service for your car.

Find the Right DieHard Battery for Your D21

Your Nissan D21 deserves the best, which is why we exclusively carry the best. You need a reliable, durable and powerful battery in extremely hot and cold environments. DieHard batteries go above and beyond using the latest innovative technology to fuel the expanding power demands of new vehicles. Don't call a DieHard battery ordinary. It's an extraordinary battery. Go with a DieHard battery for your D21 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 Nissan D21 Battery

Got a new car battery installed in your 1994 Nissan D21? Congrats! Now, help it last longer and stay charged by caring for it from the get-go. Give your new battery a hand by limiting 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 D21 Car Battery Questions

Turn to Firestone Complete Auto Care for answers to all your car battery questions. If you have a D21-specific battery question, visit your nearest store. Our expert techs have the answers you need.

Why won’t my D21 battery hold a charge? 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 a habit of leaving your car doors open and the lights on overnight. Stop by for a complimentary battery check at your local Firestone Complete Auto Care to learn more about the state of your battery.
What happens to my old D21 battery? We recycle it, taking care of both your car and the Earth.
What’s the cost of DieHard batteries for Nissan D21s? You can find affordable D21 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 stuff around my D21’s battery post? The white, flaky stuff that can build up around your D21’s battery terminals is known as corrosion. Acid leaking from your vehicle’s battery post can have a chemical reaction with the air, leading to an accumulation of the white, powdery substance over time. Corrosion can affect the flow of electricity between your battery and the electrical system in your D21, possibly causing issues with electrical performance and starting. If left unaddressed for long enough, it may even cause your battery to prematurely fail.
How do I clean corrosion off my D21 vehicle battery? You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your D21 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.
Who carries D21 batteries near me? Your local Firestone Complete Auto Care sells and installs D21 batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.