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’ve been leaving the doors slightly open and the dome lights on during the night. Stop by for a free battery test at your favorite Firestone Complete Auto Care to learn more about the state of your battery.

What do you do with my dead 525i battery?

We’ll recycle your car battery for you!

What’s the cost of DieHard batteries for BMW 525is?

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 do car batteries 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, crusty buildup on my 525i’s battery post?

The white, crusty stuff that can accumulate around 525i 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.

What do I do about corrosion on my 525i car battery?

You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your 525i 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.

Where can I find a battery for my 525i?

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 1991 BMW 525i

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BMW 525i Batteries Near You

The middle of nowhere is the wrong place to have a weak battery. Shop replacement batteries for 1991 BMW 525i today and schedule a quick installation at Firestone Complete Auto Care.

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Battery Size & Replacement for 1991 BMW 525i

Need more info about BMW 525i batteries? Check the chart to find the right car battery size and cold cranking amps for your 525i.

Battery	Engine	Warranty		Cold Cranking Amps
92/T7-2	L6/2.5L	Replacement 36 months	Performance months	800

BATTERIES
L6/2.5L - Battery: 92/T7-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800

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Buy the Right Battery for Your BMW 525i

You can pretty much drive your BMW 525i until you don't want to anymore. But your 525i'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 1991 BMW 525i battery before it fails and leaves you stranded. Watch for signs that your current battery is getting too old or too weak. A sluggish engine start, an illuminated check engine light or battery signal, bloated battery case, corrosion-covered posts, and subpar electrical performance can all be signs that your battery is waving goodbye.

Plus, at Firestone Complete Auto Care, we’ll test your battery for free. With computerized testing we can see how much charge is left in your battery. Visit us for a complimentary battery check and, if needed, a replacement battery for your 1991 BMW 525i. Car batteries are only one of our many strong suits. Our technicians are familiar with BMW-specific recommendations for 525i 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.

Is There a DieHard Battery for 525is?

We only want 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 that can handle most extreme environments and weather conditions. DieHard 525i batteries surpass expectations and house the latest technology to meet the expanding power needs of modern vehicles They're no ordinary battery, they're extraordinary. Choose a DieHard battery for your BMW 525i and drive with confidence knowing that performance will be there when you're counting on it. That's the kind of battery we deliver.

After Buying 1991 BMW 525i Battery

Got a new car battery installed in your 1991 BMW 525i? Great job! Give your new car battery the best start with proper care. turning off all of the lights when you leave your vehicle, limiting short trips, keeping your battery posts clean, and not using electronics such as the radio and power outlets when the engine is off.

Answers to Your 525i Car Battery Questions

Turn to Firestone Complete Auto Care for answers to all your car battery questions. If you have a battery question that's unique to your BMW 525i battery, pay us a visit. Our technicians have the answers.

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’ve been leaving the doors slightly open and the dome lights on during the night. Stop by for a free battery test at your favorite Firestone Complete Auto Care to learn more about the state of your battery.
What do you do with my dead 525i battery? We’ll recycle your car battery for you!
What’s the cost of DieHard batteries for BMW 525is? 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 do car batteries 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, crusty buildup on my 525i’s battery post? The white, crusty stuff that can accumulate around 525i 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.
What do I do about corrosion on my 525i car battery? You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your 525i 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.
Where can I find a battery for my 525i? 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.