Why won't my 440i battery stay charged?

A battery is in its final hour when it will no longer hold a charge. 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 complimentary battery check at your favorite Firestone Complete Auto Care to learn more about the state of your battery.

What happens to my old 440i battery?

We’ll recycle your car battery for you!

How much do DieHard batteries cost for your BMW 440i?

You can find affordable 440i 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?

A car battery normally lasts three to five years, but this number can vary based on battery type, your driving habits, and battery maintenance.

What is the white, crusty substance accumulating on my 440i’s battery post?

The white, flaky stuff that can build up around your 440i’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 440i, 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 corrosion off my 440i vehicle battery?

You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your 440i 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 440i?

When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install 440i 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.

2020 BMW 440i Car Batteries

Get a New BMW Battery

Get a Battery for Your BMW 440i

Don't let a failing battery slow you down. Shop replacement batteries for 2020 BMW 440is today and schedule a quick installation at Firestone Complete Auto Care.

Shop Batteries

Battery Size & Replacement for 2020 BMW 440i

Researching battery replacements for your BMW 440i? Check the chart to find the right car battery size and cold cranking amps for your 440i.

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

Schedule an Appointment

Shopping for BMW 440i Car Batteries

Sadly, your BMW 440i won't last forever. Neither will its battery. Generally, car batteries last from three to five years. You want to replace your 2020 BMW 440i battery before it fails and leaves you stranded. Look out for symptoms of a faulty car battery. A sluggish engine start, an illuminated battery or check engine light, swollen battery case, corroded battery terminals, or faded headlights can all signal that your battery is waving goodbye.

You can also get a Free Battery Test at your local Firestone Complete Auto Care. Our equipment 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 2020 BMW 440i running! Automotive batteries are just one of our many areas of expertise. Our technicians are well-acquainted with BMW’s service specs for 440i car batteries’ reserve capacities and cold cranking amps. Get help identifying the type and size of battery that's best for your 440i, and schedule a weekday or weekend battery replacement service for your car.

Find the Right DieHard Battery for Your 440i

We know what’s best for your BMW 440i, which is why we only carry top-of-the-line replacement parts and batteries. Your vehicle needs a reliable, durable and powerful battery in extremely hot and cold environments. DieHard batteries shatter expectations using state-of-the-art advancements to meet the increasing power needs of new vehicles and their accessories. Don't call a DieHard battery ordinary. It's an extraordinary battery. Go with a DieHard battery for your 440i and get behind the wheel with confidence. Why? Because performance will be there when you're counting on it. That’s why you should choose batteries from Firestone Complete Auto Care.

After Buying 2020 BMW 440i Battery

Did you recently have a new 2020 BMW 440i car battery installed? Congrats! 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, cleaning your battery posts, and not playing the radio or using other electronics when the engine is turned off.

Commonly Asked 440i Battery Questions

Get answers to common car battery questions, from Firestone Complete Auto Care. If you have a battery question that's unique to your BMW 440i battery, visit your nearest store. Our technicians are happy to help.

Why won't my 440i battery stay charged? A battery is in its final hour when it will no longer hold a charge. 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 complimentary battery check at your favorite Firestone Complete Auto Care to learn more about the state of your battery.
What happens to my old 440i battery? We’ll recycle your car battery for you!
How much do DieHard batteries cost for your BMW 440i? You can find affordable 440i 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? A car battery normally lasts three to five years, but this number can vary based on battery type, your driving habits, and battery maintenance.
What is the white, crusty substance accumulating on my 440i’s battery post? The white, flaky stuff that can build up around your 440i’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 440i, 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 corrosion off my 440i vehicle battery? You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your 440i 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 440i? When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install 440i 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.