Why won't my RX350 battery stay charged?

A battery that won't hold a charge is almost as good as dead. The battery may be too old. Or, you may have a habit of leaving your car doors open and the cabin light at night. Stop by for a complimentary battery check at your favorite Firestone Complete Auto Care and get a handle on your car battery’s health.

What happens to my old RX350 battery?

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

How much do DieHard batteries cost for your Lexus RX350?

You can find affordable RX350 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?

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 RX350’s battery post?

If you notice white, crusty stuff around the battery terminals of your RX350, it's likely corrosion. A chemical reaction between battery acid and the air can create a white, powdery substance that builds up over time on the terminals. This buildup can interfere with the electrical connection between the battery and your RX350’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.

How do I clean a corroded RX350 battery terminal?

You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your RX350 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 RX350?

When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install RX350 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.

Car Batteries for 2008 Lexus RX350

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Lexus RX350 Batteries Near You

Don’t let a dead battery stop you. Shop replacement car batteries for your 2008 Lexus RX350 at Firestone Complete Auto Care.

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2008 Lexus RX350 Battery Replacement & Size

Need more info about Lexus RX350 batteries? Use this chart to find the right battery size and CCAs for your Lexus RX350.

Battery	Engine	Warranty		Cold Cranking Amps
24F-3	V6/3.5L	Replacement 24 months	Performance months	650
24F-6	V6/3.5L	Replacement 36 months	Performance months	750
24F-RP	V6/3.5L	Replacement 48 months	Performance months	750

BATTERIES
V6/3.5L - Battery: 24F-3 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 650
V6/3.5L - Battery: 24F-6 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 750
V6/3.5L - Battery: 24F-RP - Warranty: Replacement 48 months, Performance months - Cold Cranking Amps: 750

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Shopping for Lexus RX350 Car Batteries

You can pretty much drive your Lexus RX350 until you don't want to anymore. But your RX350's battery? Don't count on it to last forever. On average, auto batteries last anywhere from three to five years. Check your battery regularly and replace it as needed so it doesn’t leave you and your Lexus RX350 stranded. Watch for signs that your current battery is getting too old or too weak. A sluggish engine start, a blinking battery or check engine light, swollen battery case, corrosion-covered posts, or faded headlights may all indicate that your battery is waving goodbye.

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 needed, get your Lexus RX350 a replacement battery. Automotive batteries are just one of our many areas of expertise. Our technicians are well-acquainted with Lexus’s service specs for RX350 battery CCAs and reserve capacity. Get help identifying the type and size of battery that fits your car perfectly, and schedule an appointment today for a quick car battery replacement.

Find the Right DieHard Battery for Your RX350

We only want what’s best for your Lexus RX350, which is why we exclusively carry the best. 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 demands of new vehicles and their accessories. A DieHard battery isn't an ordinary car battery. It's extraordinary. Go with a DieHard battery for your RX350 and drive with confidence knowing that performance will be there when you need it most. That’s why you should choose batteries from Firestone Complete Auto Care.

Making Your RX350’s New Battery Last

Got a new car battery installed in your 2008 Lexus RX350? Congrats! Give your new car battery the best start with proper care. Give your new battery a hand by limiting short trips, cleaning your battery posts, and avoiding radio and electronic component use when the engine is off.

Answers to Your RX350 Car Battery Questions

Firestone Complete Auto Care has answers to your top car battery questions. If you have a RX350-specific battery question, pay us a visit. Our technicians have the answers.

Why won't my RX350 battery stay charged? A battery that won't hold a charge is almost as good as dead. The battery may be too old. Or, you may have a habit of leaving your car doors open and the cabin light at night. Stop by for a complimentary battery check at your favorite Firestone Complete Auto Care and get a handle on your car battery’s health.
What happens to my old RX350 battery? We recycle it! Nearly 100% of all lead-acid batteries are recyclable.
How much do DieHard batteries cost for your Lexus RX350? You can find affordable RX350 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? 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 RX350’s battery post? If you notice white, crusty stuff around the battery terminals of your RX350, it's likely corrosion. A chemical reaction between battery acid and the air can create a white, powdery substance that builds up over time on the terminals. This buildup can interfere with the electrical connection between the battery and your RX350’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.
How do I clean a corroded RX350 battery terminal? You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your RX350 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 RX350? When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install RX350 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.