Why won't my RDX 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 been leaving your car doors ajar 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 RDX battery?

We’ll recycle your car battery for you!

How much will replacing my Acura RDX’s battery cost if I get a Duralast battery?

Get affordable prices on Acura RDX batteries by using one of our limited-time battery deals.

How long can I expect my car battery to last?

You can usually get three to five years out of your car battery. However, battery type, how well you maintain your battery, and your driving habits can all affect your battery’s lifespan.

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

The white, crusty stuff that can accumulate around RDX 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.

What do I do about corrosion on my RDX car battery?

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

You can shop for RDX batteries at your local Firestone Complete Auto Care, and our expert technicians will even handle the installation. Don’t have time to visit our store? Our Firestone Direct mobile vans can come to you for battery installations! Learn more about our mobile battery services.

2021 Acura RDX Car Batteries

Get a New Acura Battery

Get a Battery for Your Acura RDX

Don’t let a dead battery stop you. Shop replacement car batteries for your 2021 Acura RDX at Firestone Complete Auto Care.

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2021 Acura RDX Battery Replacement & Size

Researching battery replacements for your Acura RDX? Use the following chart to find information on Acura RDX battery size and cold cranking amps.

Battery	Engine	Warranty		Cold Cranking Amps
H6-AGM	L4/2.0L	Replacement 36 months	Performance months	760

BATTERIES
L4/2.0L - Battery: H6-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 760

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Buying a Replacement Battery for Acura RDX

Your RDX doesn't have an expiration date, but its battery does. 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 Acura RDX stranded. Look out for symptoms of a faulty car battery. A sluggish engine start, an illuminated battery or check engine light, bloated battery case, corroded battery posts, or faded headlights may all indicate that your battery is waving goodbye.

Or, you can get a complimentary battery check at your nearest Firestone Complete Auto Care. Our equipment can see how much charge is left in your battery. Stop by for a free battery test and, if necessary, a battery replacement to help keep your 2021 Acura RDX running! Automotive batteries are just one of our many areas of expertise. Our technicians are familiar with Acura-specific recommendations for RDX battery cold cranking amps and reserve capacity. Get help choosing the battery size that matches your vehicle, and schedule an appointment today for a quick car battery replacement.

Why Choose a Duralast Battery for Your RDX?

Your Acura RDX deserves the best, which is why we carry just that. Your vehicle needs a reliable, durable and powerful battery that can handle most extreme environments and weather conditions. Duralast RDX batteries surpass expectations using the latest innovative technology to satisfy the increasing power needs of new vehicles and their accessories. Don't call a Duralast battery ordinary. It's an extraordinary battery. Buy a Duralast battery for your Acura RDX and drive with confidence knowing that performance will be there when you need it most. That's the kind of battery we deliver.

Caring for a New Acura RDX Battery

Got a new car battery installed in your 2021 Acura RDX? Good thinking! You can give your new battery a head start with proper care and attention. You can take care of your battery by decreasing the number of short trips you take, cleaning your battery posts, and avoiding radio and electronic component use when the engine is off.

Commonly Asked RDX Battery Questions

Firestone Complete Auto Care has answers to your top car battery questions. If you have a RDX-specific battery question, visit your nearest store. Our technicians have the answers.

Why won't my RDX 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 been leaving your car doors ajar 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 RDX battery? We’ll recycle your car battery for you!
How much will replacing my Acura RDX’s battery cost if I get a Duralast battery? Get affordable prices on Acura RDX batteries by using one of our limited-time battery deals.
How long can I expect my car battery to last? You can usually get three to five years out of your car battery. However, battery type, how well you maintain your battery, and your driving habits can all affect your battery’s lifespan.
Why is there white, crusty buildup on my RDX’s battery post? The white, crusty stuff that can accumulate around RDX 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.
What do I do about corrosion on my RDX car battery? You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your RDX 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 RDX? You can shop for RDX batteries at your local Firestone Complete Auto Care, and our expert technicians will even handle the installation. Don’t have time to visit our store? Our Firestone Direct mobile vans can come to you for battery installations! Learn more about our mobile battery services.