Why won't my 740i xDrive battery stay charged?

A car battery that needs to be jump-started every time is as good as dead. 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 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 740i xDrive battery?

We recycle it, taking care of both your car and the Earth.

How much do DieHard batteries cost for your BMW 740i xDrive?

BMW 740i xDrive 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 often should I replace my 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.

Why is there white, flaky stuff around my 740i xDrive’s battery post?

If you notice white, crusty stuff around the battery terminals of your 740i xDrive, it's likely corrosion. A chemical reaction between battery acid and the air can create a white, powdery substance that builds up over time on the terminals. This buildup can interfere with the electrical connection between the battery and your 740i xDrive’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.

How do I clean corrosion off my 740i xDrive vehicle 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 740i xDrive owner’s manual for instructions on how to do so.

Where can I purchase 740i xDrive batteries near me?

When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install 740i xDrive 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.

Car Batteries for 2021 BMW 740i xDrive

Get a New BMW Battery

Get a New BMW 740i xDrive Battery

Don’t let a dead battery stop you. Shop replacement car batteries for your 2021 BMW 740i xDrive at Firestone Complete Auto Care.

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The Right Battery Size for a 2021 BMW 740i xDrive

Not sure what battery to get for your BMW 740i xDrive? Use the following chart to find information on BMW 740i xDrive battery size and cold cranking amps.

Battery	Engine	Warranty		Cold Cranking Amps
H8-AGM	L6/3.0L	Replacement 36 months	Performance months	900

BATTERIES
L6/3.0L - Battery: H8-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 900

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Buying a Replacement Battery for BMW 740i xDrive

You can pretty much drive your BMW 740i xDrive until you don't want to anymore. But your 740i xDrive's battery? Don't count on it to last forever. On average, auto batteries last anywhere from three to five years. You want to replace your 2021 BMW 740i xDrive battery before it fails and leaves you stranded. Look out for symptoms of a faulty car battery. A sluggish engine start, an illuminated check engine light or battery signal, bloated battery case, corroded battery posts, or faded headlights 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 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 BMW 740i xDrive. Car batteries are only one of our many strong suits. Our technicians are familiar with BMW-specific recommendations for 740i xDrive car batteries’ reserve capacities and cold cranking amps. Get help choosing the battery size that matches your vehicle, and schedule an appointment today for a quick car battery replacement.

Why Choose a DieHard Battery for Your 740i xDrive?

We only want what’s best for your BMW 740i xDrive, which is why we carry just that. Your 740i xDrive needs a reliable, durable and powerful battery that can handle most extreme environments and weather conditions. DieHard batteries go above and beyond using the latest innovative technology to fuel the growing power requirements of modern vehicles A DieHard battery isn't an ordinary car battery. It's extraordinary. Go with a DieHard battery for your 740i xDrive and get behind the wheel with confidence. Why? Because your battery will perform when you need it. That’s why you should choose batteries from Firestone Complete Auto Care.

Caring for a New BMW 740i xDrive Battery

Did you recently have a new 2021 BMW 740i xDrive car battery installed? Good thinking! You can give your new battery a head start with proper care and attention. Help extend your car battery’s life by limiting short trips, cleaning your battery posts, and not using electronics such as the radio and power outlets when the engine is off.

Answers to Your 740i xDrive Car Battery Questions

Firestone Complete Auto Care has answers to your top car battery questions. If you have a 740i xDrive-specific battery question, pay us a visit. Our technicians are happy to help.

Why won't my 740i xDrive battery stay charged? A car battery that needs to be jump-started every time is as good as dead. 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 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 740i xDrive battery? We recycle it, taking care of both your car and the Earth.
How much do DieHard batteries cost for your BMW 740i xDrive? BMW 740i xDrive 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 often should I replace my 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.
Why is there white, flaky stuff around my 740i xDrive’s battery post? If you notice white, crusty stuff around the battery terminals of your 740i xDrive, it's likely corrosion. A chemical reaction between battery acid and the air can create a white, powdery substance that builds up over time on the terminals. This buildup can interfere with the electrical connection between the battery and your 740i xDrive’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.
How do I clean corrosion off my 740i xDrive vehicle 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 740i xDrive owner’s manual for instructions on how to do so.
Where can I purchase 740i xDrive batteries near me? When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install 740i xDrive 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.