Why won't my 745i 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 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 happens to my old 745i battery?

We recycle it! Nearly 100% of all lead-acid batteries are recyclable.

What’s the cost of DieHard batteries for BMW 745is?

You can find affordable 745i 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 do car batteries last?

Car battery lifespan varies depending on a few factors, including driving conditions, accessories, how well it’s maintained, and the type of battery. On average, a car battery lasts about three to five years.

What is the white, crusty substance accumulating on my 745i’s battery post?

The white, flaky stuff that can build up around your 745i’s battery terminals is known as corrosion. Acid leaking from your vehicle’s battery post can have a chemical reaction with the air, leading to an accumulation of the white, powdery substance over time. Corrosion can affect the flow of electricity between your battery and the electrical system in your 745i, possibly causing issues with electrical performance and starting. If left unaddressed for long enough, it may even cause your battery to prematurely fail.

How do I remove corrosion from my 745i car battery?

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 745i batteries near me?

At Firestone Complete Auto Care, we make it easy to get a new car battery. Our stores sell and install 745i batteries, and our Firestone Direct mobile vans can even come to you for added convenience. Check out our mobile battery services to learn more.

2002 BMW 745i Batteries

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BMW 745i Batteries Near You

Don't let a failing battery slow you down. Shop replacement batteries for 2002 BMW 745is today and schedule a quick installation at Firestone Complete Auto Care.

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The Right Battery Size for a 2002 BMW 745i

Not sure what battery to get for your BMW 745i? Use this chart to find the right battery size and CCAs for your BMW 745i.

Battery	Engine	Warranty		Cold Cranking Amps
95R/H9	V8/4.4L	Replacement 36 months	Performance months	950
H8-AGM	V8/4.4L	Replacement 36 months	Performance months	900

BATTERIES
V8/4.4L - Battery: 95R/H9 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 950
V8/4.4L - Battery: H8-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 900

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Buy the Right Battery for Your BMW 745i

Sadly, your BMW 745i won't last forever. Neither will its battery. On average, auto batteries last anywhere from three to five years. Don’t get stranded by your 745i’s car battery. Replace it regularly instead! Pay attention to clues that your battery is on its way out. A sluggish engine start, a blinking battery or check engine light, bloated battery case, corrosion-covered posts, or weak lights can all signal that your battery needs attention.

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. Stop by for a free battery test and, if necessary, a battery replacement to help keep your 2002 BMW 745i running! Car batteries are one of our many specialties! Our expert technicians understand BMW service recommendations for 745i battery CCAs and reserve capacity. Get help identifying the type and size of battery that's best for your 745i, and schedule a weekday or weekend battery replacement service for your car.

Find the Right DieHard Battery for Your 745i

We only want what’s best for your BMW 745i, 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 some of the toughest conditions. DieHard batteries go above and beyond and house the latest technology to fuel the expanding power needs of new vehicles and their accessories. A DieHard battery isn't an ordinary car battery. It's extraordinary. Buy a DieHard battery for your BMW 745i and drive with confidence knowing that performance will be there when you need it most. That's the kind of battery we deliver.

After Buying 2002 BMW 745i Battery

Did you recently have a new 2002 BMW 745i car battery installed? Good thinking! You can give your new battery a head start with proper care and attention. You can take care of your battery by decreasing the number of short trips you take, keeping your battery posts clean, and not using electronics such as the radio and power outlets when the engine is off.

Answers to Your 745i Car Battery Questions

Firestone Complete Auto Care has answers to your top car battery questions. If you have a 745i-specific battery question, pay us a visit. Our expert techs have the answers you need.

Why won't my 745i 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 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 happens to my old 745i battery? We recycle it! Nearly 100% of all lead-acid batteries are recyclable.
What’s the cost of DieHard batteries for BMW 745is? You can find affordable 745i 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 do car batteries last? Car battery lifespan varies depending on a few factors, including driving conditions, accessories, how well it’s maintained, and the type of battery. On average, a car battery lasts about three to five years.
What is the white, crusty substance accumulating on my 745i’s battery post? The white, flaky stuff that can build up around your 745i’s battery terminals is known as corrosion. Acid leaking from your vehicle’s battery post can have a chemical reaction with the air, leading to an accumulation of the white, powdery substance over time. Corrosion can affect the flow of electricity between your battery and the electrical system in your 745i, possibly causing issues with electrical performance and starting. If left unaddressed for long enough, it may even cause your battery to prematurely fail.
How do I remove corrosion from my 745i car battery? 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 745i batteries near me? At Firestone Complete Auto Care, we make it easy to get a new car battery. Our stores sell and install 745i batteries, and our Firestone Direct mobile vans can even come to you for added convenience. Check out our mobile battery services to learn more.