Why won’t my Forester battery hold a charge?

A battery that won't hold a charge is almost as good as dead. The battery might be old. Or, you’ve been leaving the doors slightly open and the lights on overnight. Stop by for a free battery test at your favorite Firestone Complete Auto Care to learn more about the state of your battery.

What do you do with my dead Forester battery?

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

How much do DieHard batteries cost for your Subaru Forester?

Get affordable prices on Subaru Forester 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.

How long is a car battery good for?

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, flaky stuff around my Forester’s battery post?

A chemical reaction between battery acid and the air can cause a white, crusty buildup to form on the terminals of your Forester car battery. This buildup — known as corrosion — can impede the flow of electricity and cause a range of issues, from poor performance to premature battery failure.

How do I clean a corroded Forester battery terminal?

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

When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install Forester 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.

Car Batteries for 2003 Subaru Forester

Get a New Subaru Battery

Get a Battery for Your Subaru Forester

Don’t let a dead battery stop you. Shop replacement car batteries for your 2003 Subaru Forester at Firestone Complete Auto Care.

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2003 Subaru Forester Battery Replacement & Size

Researching battery replacements for your Subaru Forester? Use the following chart to find information on Subaru Forester 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

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

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Buy the Right Battery for Your Subaru Forester

You can pretty much drive your Subaru Forester until you don't want to anymore. But your Forester's battery? Don't count on it to last forever. The average car battery lasts three to five years. You want to replace your 2003 Subaru Forester battery before it fails and leaves you stranded. Pay attention to clues that your battery is on its way out. A lagging starter, an illuminated battery or check engine light, bloated battery case, corroded battery terminals, and subpar electrical performance can all signal that your battery is on its last leg.

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 needed, a replacement battery for your 2003 Subaru Forester. Car batteries are one of our many specialties! Our technicians are familiar with Subaru-specific recommendations for Forester battery CCAs and reserve capacity. Get help figuring out the battery size that fits your car perfectly, and schedule a weekday or weekend battery replacement service for your car.

Why Choose a DieHard Battery for Your Forester?

Your Subaru Forester deserves the best, which is why we only carry top-of-the-line replacement parts and batteries. You need a reliable, durable and powerful battery that can handle most extreme environments and weather conditions. DieHard batteries go above and beyond using the latest innovative technology to fuel the expanding power requirements of new vehicles and their accessories. Don't call a DieHard battery ordinary. It's an extraordinary battery. Choose a DieHard battery for your Subaru Forester and get behind the wheel with confidence. Why? Because your battery will perform when you need it. That's the kind of battery we deliver.

Making Your Forester’s New Battery Last

Got a new car battery installed in your 2003 Subaru Forester? Good thinking! You can give your new battery a head start with proper care and attention. Help extend your car battery’s life by decreasing the number of short trips you take, keeping your battery posts clean, and not using electronics such as the radio and power outlets when the engine is off.

Commonly Asked Forester Battery Questions

Turn to Firestone Complete Auto Care for answers to all your car battery questions. If you have a Forester-specific battery question, pay us a visit. Our technicians have the answers.

Why won’t my Forester battery hold a charge? A battery that won't hold a charge is almost as good as dead. The battery might be old. Or, you’ve been leaving the doors slightly open and the lights on overnight. Stop by for a free battery test at your favorite Firestone Complete Auto Care to learn more about the state of your battery.
What do you do with my dead Forester battery? We recycle it! Nearly 100% of all lead-acid batteries are recyclable.
How much do DieHard batteries cost for your Subaru Forester? Get affordable prices on Subaru Forester 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.
How long is a car battery good for? 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, flaky stuff around my Forester’s battery post? A chemical reaction between battery acid and the air can cause a white, crusty buildup to form on the terminals of your Forester car battery. This buildup — known as corrosion — can impede the flow of electricity and cause a range of issues, from poor performance to premature battery failure.
How do I clean a corroded Forester battery terminal? You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your Forester 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 Forester batteries near me? When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install Forester 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.