Car Batteries for 2019 Mercedes-Benz SL450

Get a New Mercedes-Benz Battery

Get a Battery for Your Mercedes-Benz SL450

Don’t let a dead battery stop you. Shop replacement car batteries for your 2019 Mercedes-Benz SL450 at Firestone Complete Auto Care.

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Buy the Right Battery for Your Mercedes-Benz SL450

Your SL450 doesn't have an expiration date, but its battery does. Generally, car batteries last from three to five years. Don’t get stranded by your SL450’s car battery. Replace it regularly instead! Watch for signs that your current battery is getting too old or too weak. A sluggish engine start, an illuminated battery or check engine light, swollen battery case, corroded battery posts, and subpar electrical performance may all indicate that your battery is waving goodbye.

Plus, at Firestone Complete Auto Care, we’ll test your battery for free. With best-in-class tools we can tell you how much "life" is left in your battery. Drop in for a free battery check and, if needed, get your Mercedes-Benz SL450 a replacement battery. Car batteries are one of our many specialties! Our technicians are well-acquainted with Mercedes-Benz’s service specs for SL450 battery CCAs and reserve capacity. Get help figuring out the battery size that matches your vehicle, and schedule a fast car battery replacement at your earliest convenience.

Why Choose a DieHard Battery for Your SL450?

We only want what’s best for your Mercedes-Benz SL450, which is why we carry just that. Your vehicle needs a reliable, durable and powerful battery that can handle most extreme environments and weather conditions. DieHard batteries shatter expectations using the latest innovative technology to meet the expanding power needs of new vehicles. Don't call a DieHard battery ordinary. It's an extraordinary battery. Go with a DieHard battery for your SL450 and have the peace of mind that your battery will perform when you need it. That's the kind of battery we deliver.

After Buying 2019 Mercedes-Benz SL450 Battery

Did you recently have a new 2019 Mercedes-Benz SL450 car battery installed? Great job! Now, help it last longer and stay charged by caring for it from the get-go. Give your new battery a hand 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.

Answers to Your SL450 Car Battery Questions

Firestone Complete Auto Care has answers to your top car battery questions. If you have a battery question that's unique to your Mercedes-Benz SL450 battery, visit your nearest store. Our expert techs have the answers you need.

  • Why won’t my SL450 battery hold a charge? A battery that won't hold a charge is almost 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 in for a free battery check at your nearest Firestone Complete Auto Care and learn more about your battery's charge.
  • What do you do with my old SL450 battery? We recycle it, taking care of both your car and the Earth.
  • How much will replacing my Mercedes-Benz SL450’s battery cost if I get a DieHard battery? Mercedes-Benz SL450 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 long can I expect my car battery to last? The typical 12-volt car battery may last three to five years, depending on the type of battery, the driving conditions, and how well the battery is maintained.
  • Why is there white, crusty buildup on my SL450’s battery post? The white, crusty stuff that can accumulate around SL450 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 SL450 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 SL450 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 SL450? When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install SL450 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.