Why won't my 525i battery stay charged?

A battery that won't hold a charge is almost as good as dead. The battery might be 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 nearest Firestone Complete Auto Care and learn more about your battery's charge.

What do you do with my old 525i battery?

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

How much do DieHard batteries cost for your BMW 525i?

You can find affordable 525i 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 can I expect my car battery to last?

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 525i’s battery post?

The white, flaky stuff that can build up around your 525i’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 525i, 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 clean a corroded 525i battery terminal?

Regularly inspecting and cleaning your battery terminals will help keep your 525i’s electrical system running smoothly. Before cleaning, reference your owner’s manual for instructions on how to disconnect the battery cables. Once the cables have been disconnected, gently clean the terminals with a mixture of water and baking soda, a wire brush, and a rag.

Who carries 525i batteries near me?

At Firestone Complete Auto Care, we make it easy to get a new car battery. Our stores sell and install 525i batteries, and our Firestone Direct mobile vans can even come to you for added convenience. Check out our mobile battery services to learn more.

Car Batteries for 2004 BMW 525i

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Get a Battery for Your BMW 525i

Don't let a failing battery slow you down. Shop replacement batteries for 2004 BMW 525is today and schedule a quick installation at Firestone Complete Auto Care.

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The Right Battery Size for a 2004 BMW 525i

Need more info about BMW 525i batteries? Use the following chart to find information on BMW 525i battery size and cold cranking amps.

Battery	Engine	Warranty		Cold Cranking Amps
93-1	L6/2.5L	Replacement 24 months	Performance months	825
49H8	L6/2.5L	Replacement 36 months	Performance months	900
H7-AGM	L6/2.5L	Replacement 36 months	Performance months	850

BATTERIES
L6/2.5L - Battery: 93-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 825
L6/2.5L - Battery: 49H8 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 900
L6/2.5L - Battery: H7-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 850

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Buy the Right Battery for Your BMW 525i

Sadly, your BMW 525i won't last forever. Neither will its battery. 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 525i stranded. Look out for symptoms of a faulty car battery. A slow engine crank, a blinking battery or check engine light, swollen battery case, corroded battery terminals, or faded headlights may all indicate that your battery is waving goodbye.

Plus, at Firestone Complete Auto Care, we’ll test your battery for free. Our equipment can see how much charge is left in your battery. Visit us for a complimentary battery check and, if needed, get your BMW 525i a replacement battery. Car batteries are only one of our many strong suits. Our expert technicians understand BMW service recommendations for 525i battery CCAs and reserve capacity. Get help choosing the battery size that's best for your 525i, and schedule an appointment today for a quick car battery replacement.

Why Choose a DieHard Battery for Your 525i?

We know what’s best for your BMW 525i, which is why we only carry top-of-the-line replacement parts and batteries. You need a reliable, durable and powerful battery in even the most extreme conditions. DieHard 525i batteries surpass expectations and house the latest technology to fuel the growing power demands of modern vehicles Don't call a DieHard battery ordinary. It's an extraordinary battery. Buy a DieHard battery for your BMW 525i and drive with confidence knowing that your battery will perform when you need it. That's the kind of battery we deliver.

Making Your 525i’s New Battery Last

Have you recently had a fresh battery installed in your BMW 525i? Great job! You can give your new battery a head start with proper care and attention. Give your new battery a hand by limiting short trips, keeping your battery posts clean, and not using electronics such as the radio and power outlets when the engine is off.