2021 BMW 840i xDrive Batteries

Get a New BMW Battery

Get a New BMW 840i xDrive Battery

Don't let a failing battery slow you down. Shop replacement batteries for 2021 BMW 840i xDrives today and schedule a quick installation at Firestone Complete Auto Care.

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Buy the Right Battery for Your BMW 840i xDrive

You can pretty much drive your BMW 840i xDrive until you don't want to anymore. But your 840i xDrive's battery? Don't count on it to last forever. Generally, car batteries last from three to five years. Check your battery regularly and replace it as needed so it doesn’t leave you and your BMW 840i xDrive stranded. Pay attention to clues that your battery is on its way out. A slow engine crank, an illuminated check engine light or battery signal, swollen battery case, corroded battery posts, or weak lights can all be signs that your battery is waving goodbye.

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 BMW 840i xDrive running! Car batteries are one of our many specialties! Our expert technicians understand BMW service recommendations for 840i xDrive battery cold cranking amps and reserve capacity. Get help choosing the battery size that fits your car perfectly, and schedule a weekday or weekend battery replacement service for your car.

Why Choose a DieHard Battery for Your 840i xDrive?

We only want what’s best for your BMW 840i xDrive, which is why we only carry top-of-the-line replacement parts and batteries. Your vehicle needs a reliable, durable and powerful battery in even the most extreme conditions. DieHard batteries go above and beyond and house the latest technology to fuel the expanding power requirements of modern vehicles Don't call a DieHard battery ordinary. It's an extraordinary battery. Go with a DieHard battery for your 840i xDrive 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.

Caring for a New BMW 840i xDrive Battery

Got a new car battery installed in your 2021 BMW 840i xDrive? Good thinking! You can give your new battery a head start with proper care and attention. turning off all of the lights when you leave your vehicle, 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.

Commonly Asked 840i xDrive Battery Questions

Turn to Firestone Complete Auto Care for answers to all your car battery questions. If you have a 840i xDrive-specific battery question, pay us a visit. Our expert techs have the answers you need.

  • Why won't my 840i xDrive 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 been leaving your car doors ajar and the dome lights on during the night. Stop by for a free battery test at your nearest Firestone Complete Auto Care to learn more about the state of your battery.
  • What do you do with my old 840i xDrive battery? We’ll recycle your car battery for you!
  • What’s the cost of DieHard batteries for BMW 840i xDrives? You can find affordable 840i xDrive 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 often should I replace my car battery? The typical 12-volt car battery may last three to five years, depending on the type of battery, the driving conditions, and how well the battery is maintained.
  • Why is there white, flaky stuff around my 840i xDrive’s battery post? The white, crusty stuff that can accumulate around 840i xDrive 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 840i xDrive battery terminal? You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your 840i xDrive owner's manual to learn how to disconnect the battery cables. After disconnecting the cables, use a mixture of water and baking soda, a wire brush, and a rag to carefully clean the terminals.
  •  Who carries 840i xDrive batteries near me? Your local Firestone Complete Auto Care sells and installs 840i xDrive batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.