Why won't my Legacy battery stay charged?

A battery that won't hold a charge is almost as good as dead. The battery may be too old. Or, you’ve been leaving the doors slightly open and the lights on overnight. Stop in for a free battery check at your favorite Firestone Complete Auto Care and get a handle on your car battery’s health.

What do you do with my old Legacy battery?

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

How much do DieHard batteries cost for your Subaru Legacy?

Get affordable prices on Subaru Legacy 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 often should I replace my car battery?

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.

What is the white, crusty stuff around my Legacy’s battery post?

The white, crusty stuff that can accumulate around Legacy 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.

How do I clean corrosion off my Legacy 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 Legacy 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 purchase Legacy batteries near me?

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

2017 Subaru Legacy Batteries

Get a New Subaru Battery

Get a Battery for Your Subaru Legacy

Don’t let a dead battery stop you. Shop replacement car batteries for your 2017 Subaru Legacy at Firestone Complete Auto Care.

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Battery Size & Replacement for 2017 Subaru Legacy

Researching battery replacements for your Subaru Legacy? Use this chart to find the right battery size and CCAs for your Subaru Legacy.

Battery	Engine	Warranty		Cold Cranking Amps
25-1	H4/2.5L	Replacement 24 months	Performance months	550
25-1	H6/3.6L	Replacement 24 months	Performance months	550

BATTERIES
H4/2.5L - Battery: 25-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 550
H6/3.6L - Battery: 25-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 550

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Buying a Replacement Battery for Subaru Legacy

Sadly, your Subaru Legacy won't last forever. Neither will its battery. The average car battery lasts three to five years. Don’t get stranded by your Legacy’s car battery. Replace it regularly instead! Look out for symptoms of a faulty car battery. A lagging starter, an illuminated battery or check engine light, bloated battery case, corrosion-covered posts, or dim headlights can all be signs that your battery is waving goodbye.

You can also get a Free Battery Test at your local Firestone Complete Auto Care. Our equipment can see how much charge is left in your battery. Visit us for a complimentary battery check and, if necessary, a battery replacement to help keep your 2017 Subaru Legacy running! Car batteries are one of our many specialties! Our technicians are familiar with Subaru-specific recommendations for Legacy battery cold cranking amps and reserve capacity. Get help choosing the battery size that fits your car perfectly, and schedule a fast car battery replacement at your earliest convenience.

Why Choose a DieHard Battery for Your Legacy?

Your Subaru Legacy deserves the best, which is why we exclusively carry the best. Your vehicle needs a reliable, durable and powerful battery in even some of the toughest conditions. DieHard Legacy batteries surpass expectations using the latest innovative technology to fuel the increasing power demands of modern vehicles They're no ordinary battery, they're extraordinary. Choose a DieHard battery for your Subaru Legacy and get behind the wheel with confidence. Why? Because performance will be there when you need it most. That’s why you should choose batteries from Firestone Complete Auto Care.

Caring for a New Subaru Legacy Battery

Did you recently have a new 2017 Subaru Legacy car battery installed? Great job! Now, help it last longer and stay charged by caring for it from the get-go. Help extend your car battery’s life by cutting back on unnecessary short trips, cleaning your battery posts, and not using electronics such as the radio and power outlets when the engine is off.