Why won't my WRX STI battery stay charged?

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

What do you do with my dead WRX STI battery?

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

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

Get affordable prices on Subaru WRX STI 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.

What is the average lifespan of a 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 substance accumulating on my WRX STI’s battery post?

The white, crusty stuff that can accumulate around WRX STI 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 WRX STI 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 carries WRX STI batteries near me?

At Firestone Complete Auto Care, we make it easy to get a new car battery. Our stores sell and install WRX STI batteries, and our Firestone Direct mobile vans can even come to you for added convenience. Check out our mobile battery services to learn more.

Car Batteries for 2016 Subaru WRX STI

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Get a New Subaru WRX STI Battery

Don’t let a dead battery stop you. Shop replacement car batteries for your 2016 Subaru WRX STI at Firestone Complete Auto Care.

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2016 Subaru WRX STI Battery Replacement & Size

Need more info about Subaru WRX STI batteries? Use the following chart to find information on Subaru WRX STI battery size and cold cranking amps.

Battery	Engine	Warranty		Cold Cranking Amps
26R-3	H4/2.5L	Replacement 24 months	Performance months	575
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: 26R-3 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 575
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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Shopping for Subaru WRX STI Car Batteries

Sadly, your Subaru WRX STI won't last forever. Neither will its battery. The average car battery lasts three to five years. You want to replace your 2016 Subaru WRX STI battery before it fails and leaves you stranded. Watch for signs that your current battery is getting too old or too weak. A sluggish engine start, a blinking battery or check engine light, swollen battery case, corroded battery terminals, or faded headlights can all be signs that your battery is on its last leg.

Or, you can get a complimentary battery check at your nearest Firestone Complete Auto Care. With computerized testing we can see how much charge is left in your battery. Drop in for a free battery check and, if needed, get your Subaru WRX STI a replacement battery. Automotive batteries are just one of our many areas of expertise. Our technicians are well-acquainted with Subaru’s service specs for WRX STI car batteries’ reserve capacities and cold cranking amps. Get help choosing the battery size that fits your car perfectly, and schedule an appointment today for a quick car battery replacement.

Firestone Has DieHard Batteries for WRX STIs

We only want what’s best for your Subaru WRX STI, which is why we only carry top-of-the-line replacement parts and batteries. Your vehicle needs a reliable, durable and powerful battery in extremely hot and cold environments. DieHard batteries go above and beyond using state-of-the-art advancements to fuel the growing power requirements of modern vehicles A DieHard battery isn't an ordinary car battery. It's extraordinary. Buy a DieHard battery for your Subaru WRX STI and drive with confidence knowing that performance will be there when you're counting on it. That's the kind of battery we deliver.

Caring for a New Subaru WRX STI Battery

Have you recently had a fresh battery installed in your Subaru WRX STI? Good thinking! You can give your new battery a head start with proper care and attention. You can take care of your battery by cutting back on unnecessary short trips, cleaning your battery posts, and not playing the radio or using other electronics when the engine is turned off.

Answers to Your WRX STI Car Battery Questions

Get answers to common car battery questions, from Firestone Complete Auto Care. If you have a WRX STI-specific battery question, visit your nearest store. Our technicians are happy to help.

Why won't my WRX STI battery stay charged? A battery is in its final hour when it will no longer hold a charge. The battery may be too old. Or, you may have been leaving your car doors ajar and the cabin light at night. Stop by for a free battery test at your nearest Firestone Complete Auto Care and learn more about your battery's charge.
What do you do with my dead WRX STI battery? We recycle it! Nearly 100% of all lead-acid batteries are recyclable.
How much will replacing my Subaru WRX STI’s battery cost if I get a DieHard battery? Get affordable prices on Subaru WRX STI 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.
What is the average lifespan of a 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 substance accumulating on my WRX STI’s battery post? The white, crusty stuff that can accumulate around WRX STI 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 WRX STI 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 carries WRX STI batteries near me? At Firestone Complete Auto Care, we make it easy to get a new car battery. Our stores sell and install WRX STI batteries, and our Firestone Direct mobile vans can even come to you for added convenience. Check out our mobile battery services to learn more.