2021 Porsche 911 Car Batteries

2021 Porsche 911 Battery Replacement & Size

Need more info about Porsche 911 batteries? Check the chart to find the right car battery size and cold cranking amps for your 911.

Battery Engine Warranty Cold Cranking Amps
BATTERIES

Buying a Replacement Battery for Porsche 911

Your 911 doesn't have an expiration date, but its battery does. The average car battery lasts three to five years. You want to replace your 2021 Porsche 911 battery before it fails and leaves you stranded. Watch for signs that your current battery is getting too old or too weak. A slow engine crank, a blinking battery or check engine light, swollen battery case, corrosion-covered posts, and subpar electrical performance may all indicate 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 necessary, a battery replacement to help keep your 2021 Porsche 911 running! Car batteries are only one of our many strong suits. Our technicians are familiar with Porsche-specific recommendations for 911 battery CCAs and reserve capacity. Get help identifying the type and size of battery that matches your vehicle, and schedule a fast car battery replacement at your earliest convenience.

Should You Choose Interstate Batteries for Your 911?

Your Porsche 911 deserves the best, which is why we only carry top-of-the-line replacement parts and batteries. We install more than 700,000 car batteries a year using Interstate Batteries, America’s #1 replacement battery brand. Interstate leads the way in terms of car battery reliability, charge capacity, and innovation. That’s why it’s unsurprising to find an Interstate Battery in the engine of a Porsche 911. Their powerful products are installed in boom lifts, freightliners, utility vehicles, and boats! Your 2021 Porsche 911 needs a reliable battery to run optimally. And Interstate Batteries are Outrageously Dependable®.

Making Your 911’s New Battery Last

Did you recently have a new 2021 Porsche 911 car battery installed? Great job! Give your new car battery the best start with proper care. Give your new battery a hand by decreasing the number of short trips you take, keeping the battery posts corrosion-free, and not using electronics such as the radio and power outlets when the engine is off.

Commonly Asked 911 Battery Questions

Firestone Complete Auto Care has answers to your top car battery questions. If you have a battery question that's unique to your Porsche 911 battery, stop by your nearest store. Our technicians have the answers.

  • Why won't my 911 battery stay charged? A battery is in its final hour when it will no longer hold a charge. It may be getting old. Or, you may have a habit of leaving your car doors open and the dome lights on during the night. Stop by for a free battery test at your favorite Firestone Complete Auto Care and learn more about your battery's charge.
  • What do you do with my dead 911 battery? We’ll recycle your car battery for you!
  •  How much do Porsche 911 batteries cost? Porsche 911 batteries can be affordable, especially when there's an available battery coupon. Plus, every Interstate Battery comes with a maintenance-free performance warranty and limited-time free replacement.

Get a New Porsche 911 Battery

Don’t let a dead battery stop you. Shop replacement car batteries for your 2021 Porsche 911 at Firestone Complete Auto Care.