2021 Ford Mustang Batteries

Get a Battery for Your Ford Mustang

Don’t let a dead battery stop you. Shop replacement car batteries for your 2021 Ford Mustang at Firestone Complete Auto Care.

Battery Size & Replacement for 2021 Ford Mustang

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

Battery Engine Warranty Cold Cranking Amps
96R-3 L4/2.3L Replacement 36 months Performance months 590
96R-3 V8/5.0L Replacement 36 months Performance months 590
96R-3 V8/5.2L Replacement 36 months Performance months 590
BATTERIES

L4/2.3L

- Battery: 96R-3

- Warranty: Replacement 36 months, Performance months

- Cold Cranking Amps: 590

V8/5.0L

- Battery: 96R-3

- Warranty: Replacement 36 months, Performance months

- Cold Cranking Amps: 590

V8/5.2L

- Battery: 96R-3

- Warranty: Replacement 36 months, Performance months

- Cold Cranking Amps: 590

Shopping for Ford Mustang Car Batteries

You can pretty much drive your Ford Mustang until you don't want to anymore. But your Mustang's battery? Don't count on it to last forever. On average, auto batteries last anywhere from three to five years. Don’t get stranded by your Mustang’s car battery. Replace it regularly instead! Look out for symptoms of a faulty car battery. A sluggish engine start, an illuminated check engine light or battery signal, swollen battery case, corroded battery terminals, or weak lights may all indicate that your battery is on its last leg.

You can also get a Free Battery Test at your local Firestone Complete Auto Care. With best-in-class tools we can tell you how much "life" is left in your battery. Visit us for a complimentary battery check and, if needed, a replacement battery for your 2021 Ford Mustang. Car batteries are only one of our many strong suits. Our technicians are familiar with Ford-specific recommendations for Mustang car batteries’ reserve capacities and cold cranking amps. Get help identifying the type and size of battery that's best for your Mustang, and schedule an appointment today for a quick car battery replacement.

Find the Right DieHard Battery for Your Mustang

We know what’s best for your Ford Mustang, 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 Mustang batteries surpass expectations using the latest innovative technology to satisfy the increasing power demands of modern vehicles Don't call a DieHard battery ordinary. It's an extraordinary battery. Go with a DieHard battery for your Mustang and drive with confidence knowing that your battery will perform when you need it. That’s why you should choose batteries from Firestone Complete Auto Care.

Making Your Mustang’s New Battery Last

Got a new car battery installed in your 2021 Ford Mustang? Good thinking! Give your new car battery the best start with proper care. Give your new battery a hand by cutting back on unnecessary short trips, keeping your battery posts clean, and avoiding radio and electronic component use when the engine is off.

Top Mustang Car Battery Questions

Get answers to common car battery questions, from Firestone Complete Auto Care. If you have battery questions that are Ford Mustang-specific, pay us a visit. Our technicians are happy to help.

  • Why won’t my Mustang battery hold a charge? A battery that won't hold a charge is almost as good as dead. It may be getting old. Or, you may have been leaving your car doors ajar and the lights on overnight. Stop by for a free battery test at your local Firestone Complete Auto Care and learn more about your battery's charge.
  • What do you do with my dead Mustang battery? We’ll recycle your car battery for you!
  • How much will replacing my Ford Mustang’s battery cost if I get a DieHard battery? Ford Mustang batteries can be affordable, especially when there's an available battery coupon. The best part is every DieHard battery comes 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.
  • What is the white, crusty substance accumulating on my Mustang’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 Mustang 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 Mustang car battery? To help extend the life of your battery, you should routinely inspect and clean the terminals using a baking soda and water mix, wire brush, and rag. Be sure to disconnect the battery cables before cleaning and check your Mustang owner’s manual for instructions on how to do so.
  • Where can I purchase Mustang batteries near me? When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install Mustang 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.