Why doesn’t my Outback battery stay charged?

A battery is in its final hour when it will no longer hold a charge. It may be getting old. Or, you may have a habit of leaving your car doors open and the cabin light at night. Stop by for a free battery test at your local Firestone Complete Auto Care and learn more about your battery's charge.

What do you do with my old Outback battery?

We’ll recycle your car battery for you!

How much will replacing my Subaru Outback’s battery cost if I get a DieHard battery?

You can find affordable Outback 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 is a car battery good for?

Car battery lifespan varies depending on a few factors, including driving conditions, accessories, how well it’s maintained, and the type of battery. On average, a car battery lasts about three to five years.

What is the white, crusty substance accumulating on my Outback’s battery post?

The white, crusty stuff that can accumulate around Outback 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 Outback car battery?

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.

Who sells Outback batteries near me?

You can shop for Outback 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.

Car Batteries for 2021 Subaru Outback

Get a New Subaru Battery

Subaru Outback Batteries Near You

The middle of nowhere is the wrong place to have a weak battery. Shop replacement batteries for 2021 Subaru Outback today and schedule a quick installation at Firestone Complete Auto Care.

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2021 Subaru Outback Battery Replacement & Size

Researching battery replacements for your Subaru Outback? Check the chart to find the right car battery size and cold cranking amps for your Outback.

Battery	Engine	Warranty		Cold Cranking Amps
H5-AGM	H4/2.4L	Replacement 36 months	Performance months	680
H5-AGM	H4/2.5L	Replacement 36 months	Performance months	680

BATTERIES
H4/2.4L - Battery: H5-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 680
H4/2.5L - Battery: H5-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 680

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Buying a Replacement Battery for Subaru Outback

You can pretty much drive your Subaru Outback until you don't want to anymore. But your Outback's battery? Don't count on it to last forever. The average car battery lasts three to five years. You want to replace your 2021 Subaru Outback battery before it fails and leaves you stranded. Look out for symptoms of a faulty car battery. A sluggish engine start, a blinking battery or check engine light, swollen battery case, corrosion-covered posts, or dim headlights can all be signs that your battery needs attention.

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. Stop by for a free battery test and, if necessary, a battery replacement to help keep your 2021 Subaru Outback running! Automotive batteries are just one of our many areas of expertise. Our technicians are familiar with Subaru-specific recommendations for Outback battery CCAs and reserve capacity. Get help figuring out the battery size that matches your vehicle, and schedule a fast car battery replacement at your earliest convenience.

Is There a DieHard Battery for Outbacks?

We know what’s best for your Subaru Outback, which is why we carry just that. Your Outback needs a reliable, durable and powerful battery in even some of the toughest conditions. DieHard batteries go above and beyond using state-of-the-art advancements to satisfy the increasing power demands of new vehicles and their accessories. A DieHard battery isn't an ordinary car battery. It's extraordinary. Choose a DieHard battery for your Subaru Outback and drive with confidence knowing that performance will be there when you need it most. That’s why you should choose batteries from Firestone Complete Auto Care.

Making Your Outback’s New Battery Last

Got a new car battery installed in your 2021 Subaru Outback? Good thinking! Now, help it last longer and stay charged by caring for it from the get-go. You can take care of your battery by decreasing the number of short trips you take, cleaning your battery posts, and not using electronics such as the radio and power outlets when the engine is off.

Commonly Asked Outback Battery Questions

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

Why doesn’t my Outback battery stay charged? A battery is in its final hour when it will no longer hold a charge. It may be getting old. Or, you may have a habit of leaving your car doors open and the cabin light at night. Stop by for a free battery test at your local Firestone Complete Auto Care and learn more about your battery's charge.
What do you do with my old Outback battery? We’ll recycle your car battery for you!
How much will replacing my Subaru Outback’s battery cost if I get a DieHard battery? You can find affordable Outback 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 is a car battery good for? Car battery lifespan varies depending on a few factors, including driving conditions, accessories, how well it’s maintained, and the type of battery. On average, a car battery lasts about three to five years.
What is the white, crusty substance accumulating on my Outback’s battery post? The white, crusty stuff that can accumulate around Outback 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 Outback car battery? 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.
Who sells Outback batteries near me? You can shop for Outback 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.