Why won't my WRX battery stay charged?

A battery that won't hold a charge is almost as good as dead. It may be getting old. Or, you’ve been leaving the doors slightly open and the dome lights on during the night. Stop by for a complimentary battery check at your favorite Firestone Complete Auto Care and learn more about your battery's charge.

What do you do with my dead WRX battery?

We’ll recycle your car battery for you!

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

You can find affordable WRX 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 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, crusty buildup on my WRX’s battery post?

The white, crusty stuff that can accumulate around WRX 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 a corroded WRX battery terminal?

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 batteries near me?

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

2020 Subaru WRX Batteries

Get a New Subaru Battery

Get a Battery for Your Subaru WRX

Don’t let a dead battery stop you. Shop replacement car batteries for your 2020 Subaru WRX at Firestone Complete Auto Care.

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Battery Size & Replacement for 2020 Subaru WRX

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

Battery	Engine	Warranty		Cold Cranking Amps
26R-3	H4/2.0L	Replacement 24 months	Performance months	575
35-2	H4/2.0L	Replacement 36 months	Performance months	640
35-AGM	H4/2.0L	Replacement 36 months	Performance months	650

BATTERIES
H4/2.0L - Battery: 26R-3 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 575
H4/2.0L - Battery: 35-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 640
H4/2.0L - Battery: 35-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 650

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Shopping for Subaru WRX Car Batteries

Sadly, your Subaru WRX won't last forever. Neither will its battery. Generally, car batteries last from three to five years. You want to replace your 2020 Subaru WRX 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, an illuminated battery or check engine light, swollen battery case, corrosion-covered posts, and subpar electrical performance can all be signs that your battery is waving goodbye.

Plus, at Firestone Complete Auto Care, we’ll test your battery for free. 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 2020 Subaru WRX. Automotive batteries are just one of our many areas of expertise. Our expert technicians understand Subaru service recommendations for WRX battery CCAs and reserve capacity. Get help choosing the battery size that matches your vehicle, and schedule an appointment today for a quick car battery replacement.

Is There a DieHard Battery for WRXs?

We know what’s best for your Subaru WRX, 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 shatter expectations using state-of-the-art advancements to fuel the increasing power requirements of new vehicles and their accessories. A DieHard battery isn't an ordinary car battery. It's extraordinary. Buy a DieHard battery for your Subaru WRX and get behind the wheel with confidence. Why? Because performance will be there when you're counting on it. That's the kind of battery we deliver.

After Buying 2020 Subaru WRX Battery

Did you recently have a new 2020 Subaru WRX car battery installed? Great job! You can give your new battery a head start with proper care and attention. ensuring all the lights are turned off before you leave the car, decreasing the number of short trips you take, keeping your battery posts clean, and avoiding radio and electronic component use when the engine is off.