Why won'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 lights on overnight. Stop by for a free battery test at your local Firestone Complete Auto Care to learn more about the state of your battery.

What happens to my old Outback battery?

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

What’s the cost of DieHard batteries for Subaru Outbacks?

Subaru Outback batteries can be affordable, especially when there's an available battery coupon. The best part is every DieHard battery comes with a free replacement warranty and extra coverage with DieHard Assurance.

How long can I expect my car battery to last?

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 stuff around my Outback’s battery post?

The white, flaky stuff that can build up around your Outback’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 Outback, 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 remove corrosion from my Outback car 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 Outback owner’s manual for instructions on how to do so.

Who sells Outback batteries near me?

Your local Firestone Complete Auto Care sells and installs Outback batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.

2004 Subaru Outback Car Batteries

Get a New Subaru Battery

Get a New Subaru Outback Battery

The middle of nowhere is the wrong place to have a weak battery. Shop replacement batteries for 2004 Subaru Outback today and schedule a quick installation at Firestone Complete Auto Care.

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Battery Size & Replacement for 2004 Subaru Outback

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

Battery	Engine	Warranty		Cold Cranking Amps
35-1	H4/2.5L	Replacement 24 months	Performance months	500
35-2	H4/2.5L	Replacement 36 months	Performance months	640
35-AGM	H4/2.5L	Replacement 36 months	Performance months	650
26R-3	H6/3.0L	Replacement 24 months	Performance months	575
35-2	H6/3.0L	Replacement 36 months	Performance months	640
35-AGM	H6/3.0L	Replacement 36 months	Performance months	650

BATTERIES
H4/2.5L - Battery: 35-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 500
H4/2.5L - Battery: 35-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 640
H4/2.5L - Battery: 35-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 650
H6/3.0L - Battery: 26R-3 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 575
H6/3.0L - Battery: 35-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 640
H6/3.0L - Battery: 35-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 650

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Buy the Right Battery for Your Subaru Outback

Your Outback doesn't have an expiration date, but its battery does. Generally, car batteries last from three to five years. You want to replace your 2004 Subaru Outback battery before it fails and leaves you stranded. 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, corrosion-covered posts, and subpar electrical performance can all be signs 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. Stop by for a free battery test and, if necessary, a battery replacement to help keep your 2004 Subaru Outback running! Car batteries are only one of our many strong suits. Our expert technicians understand Subaru service recommendations for Outback car batteries’ reserve capacities and cold cranking amps. Get help figuring out the battery size that fits your car perfectly, and schedule a fast car battery replacement at your earliest convenience.

Find the Right DieHard Battery for Your Outback

We know what’s best for your Subaru Outback, which is why we only carry top-of-the-line replacement parts and batteries. Your Outback 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 meet the expanding power needs of modern vehicles Don't call a DieHard battery ordinary. It's an extraordinary battery. Buy a DieHard battery for your Subaru Outback and drive with confidence knowing that performance will be there when you need it most. That's the kind of battery we deliver.

After Buying 2004 Subaru Outback Battery

Have you recently had a fresh battery installed in your Subaru Outback? Congrats! Now, help it last longer and stay charged by caring for it from the get-go. You can take care of your battery by cutting back on unnecessary short trips, keeping your battery posts clean, and avoiding radio and electronic component use when the engine is off.

Commonly Asked Outback Battery Questions

Get answers to common car battery questions, from Firestone Complete Auto Care. If you have a Outback-specific battery question, pay us a visit. Our technicians are happy to help.

Why won'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 lights on overnight. Stop by for a free battery test at your local Firestone Complete Auto Care to learn more about the state of your battery.
What happens to my old Outback battery? We recycle it! Nearly 100% of all lead-acid batteries are recyclable.
What’s the cost of DieHard batteries for Subaru Outbacks? Subaru Outback batteries can be affordable, especially when there's an available battery coupon. The best part is every DieHard battery comes with a free replacement warranty and extra coverage with DieHard Assurance.
How long can I expect my car battery to last? 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 stuff around my Outback’s battery post? The white, flaky stuff that can build up around your Outback’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 Outback, 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 remove corrosion from my Outback car 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 Outback owner’s manual for instructions on how to do so.
Who sells Outback batteries near me? Your local Firestone Complete Auto Care sells and installs Outback batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.