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 dome lights on during the night. Stop in for a free battery check at your nearest Firestone Complete Auto Care to learn more about the state of your battery.

What do you do with my dead Legacy battery?

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

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

You can find affordable Legacy 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 can I expect my car battery to last?

A car battery normally lasts three to five years, but this number can vary based on battery type, your driving habits, and battery maintenance.

What is the white, crusty substance accumulating on my Legacy’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 Legacy 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 remove corrosion from my Legacy car battery?

Regularly inspecting and cleaning your battery terminals will help keep your Legacy’s electrical system running smoothly. Before cleaning, reference your owner’s manual for instructions on how to disconnect the battery cables. Once the cables have been disconnected, gently clean the terminals with a mixture of water and baking soda, a wire brush, and a rag.

Where can I find a battery for my Legacy?

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.

2022 Subaru Legacy Car Batteries

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Subaru Legacy Batteries Near You

Don’t let a dead battery stop you. Shop replacement car batteries for your 2022 Subaru Legacy at Firestone Complete Auto Care.

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2022 Subaru Legacy Battery Replacement & Size

Not sure what battery to get for your Subaru Legacy? Use the following chart to find information on Subaru Legacy battery size and cold cranking amps.

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 Legacy

You can pretty much drive your Subaru Legacy until you don't want to anymore. But your Legacy's battery? Don't count on it to last forever. Generally, car batteries last from three to five years. You want to replace your 2022 Subaru Legacy battery before it fails and leaves you stranded. Pay attention to clues that your battery is on its way out. A slow engine crank, an illuminated battery or check engine light, swollen battery case, corroded battery posts, or dim headlights can all be signs that your battery is on its last leg.

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. Stop by for a free battery test and, if needed, get your Subaru Legacy a replacement battery. Car batteries are only one of our many strong suits. Our technicians are familiar with Subaru-specific recommendations for Legacy battery CCAs and reserve capacity. Get help figuring out the battery size that fits your car perfectly, and schedule a fast car battery replacement at your earliest convenience.

Is There a DieHard Battery for Legacys?

We only want what’s best for your Subaru Legacy, which is why we exclusively carry the best. Your vehicle needs a reliable, durable and powerful battery in extremely hot and cold environments. DieHard batteries shatter expectations and house the latest technology to satisfy the increasing power requirements 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 Legacy and have the peace of mind that performance will be there when you're counting on it. 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 2022 Subaru Legacy car battery installed? Good thinking! Give your new car battery the best start with proper care. turning off all of the lights when you leave your vehicle, cutting back on unnecessary short trips, keeping the battery posts corrosion-free, and avoiding radio and electronic component use when the engine is off.

Commonly Asked Legacy Battery Questions

Get answers to common car battery questions, from Firestone Complete Auto Care. If you have battery questions that are Subaru Legacy-specific, stop by your nearest store. Our technicians have the answers.

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 dome lights on during the night. Stop in for a free battery check at your nearest Firestone Complete Auto Care to learn more about the state of your battery.
What do you do with my dead Legacy battery? We recycle it! Nearly 100% of all lead-acid batteries are recyclable.
What’s the cost of DieHard batteries for Subaru Legacys? You can find affordable Legacy 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 can I expect my car battery to last? A car battery normally lasts three to five years, but this number can vary based on battery type, your driving habits, and battery maintenance.
What is the white, crusty substance accumulating on my Legacy’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 Legacy 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 remove corrosion from my Legacy car battery? Regularly inspecting and cleaning your battery terminals will help keep your Legacy’s electrical system running smoothly. Before cleaning, reference your owner’s manual for instructions on how to disconnect the battery cables. Once the cables have been disconnected, gently clean the terminals with a mixture of water and baking soda, a wire brush, and a rag.
Where can I find a battery for my Legacy? 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.