Why won’t my Fortwo battery hold a charge?

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 dome lights on during the night. Stop by for a free battery test at your local Firestone Complete Auto Care and get a handle on your car battery’s health.

What do you do with my dead Fortwo battery?

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

How much will replacing my Smart Fortwo’s battery cost if I get a DieHard battery?

You can find affordable Fortwo 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?

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 Fortwo’s battery post?

If you notice white, crusty stuff around the battery terminals of your Fortwo, 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 Fortwo’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.

How do I remove corrosion from my Fortwo 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 Fortwo 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 purchase Fortwo batteries near me?

When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install Fortwo 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 2011 Smart Fortwo

Get a New Smart Battery

Smart Fortwo Batteries Near You

Don't let a failing battery slow you down. Shop replacement batteries for 2011 Smart Fortwos today and schedule a quick installation at Firestone Complete Auto Care.

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2011 Smart Fortwo Battery Replacement & Size

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

Battery	Engine	Warranty		Cold Cranking Amps
47H5	L3/1.0L	Replacement 36 months	Performance months	650
H5-AGM	L3/1.0L	Replacement 36 months	Performance months	680
47H5	L3/1.0L	Replacement 36 months	Performance months	650
H5-AGM	L3/1.0L	Replacement 36 months	Performance months	680

BATTERIES
L3/1.0L - Battery: 47H5 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 650
L3/1.0L - Battery: H5-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 680
L3/1.0L - Battery: 47H5 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 650
L3/1.0L - Battery: H5-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 680

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Buy the Right Battery for Your Smart Fortwo

You can pretty much drive your Smart Fortwo until you don't want to anymore. But your Fortwo's battery? Don't count on it to last forever. The average car battery lasts three to five years. You want to replace your 2011 Smart Fortwo battery before it fails and leaves you stranded. Watch for signs that your current battery is getting too old or too weak. A lagging starter, an illuminated check engine light or battery signal, bloated battery case, corroded battery posts, or dim headlights may all indicate that your battery is on its last leg.

Or, you can get a complimentary battery check at your nearest 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 2011 Smart Fortwo running! Automotive batteries are just one of our many areas of expertise. Our technicians are familiar with Smart-specific recommendations for Fortwo battery CCAs and reserve capacity. Get help figuring out the battery size that's best for your Fortwo, and schedule a fast car battery replacement at your earliest convenience.

Why Choose a DieHard Battery for Your Fortwo?

We know what’s best for your Smart Fortwo, which is why we exclusively carry the best. You need a reliable, durable and powerful battery in even the most extreme conditions. DieHard Fortwo batteries surpass expectations and house the latest technology to fuel the growing power requirements of new vehicles and their accessories. Don't call a DieHard battery ordinary. It's an extraordinary battery. Buy a DieHard battery for your Smart Fortwo and drive with confidence knowing that your battery will perform when you need it. That's the kind of battery we deliver.

Making Your Fortwo’s New Battery Last

Got a new car battery installed in your 2011 Smart Fortwo? Good thinking! You can give your new battery a head start with proper care and attention. Help extend your car battery’s life by cutting back on unnecessary short trips, keeping your battery posts clean, and not playing the radio or using other electronics when the engine is turned off.

Answers to Your Fortwo Car Battery Questions

Turn to Firestone Complete Auto Care for answers to all your car battery questions. If you have a Fortwo-specific battery question, pay us a visit. Our technicians are happy to help.

Why won’t my Fortwo battery hold a charge? 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 dome lights on during the night. Stop by for a free battery test at your local Firestone Complete Auto Care and get a handle on your car battery’s health.
What do you do with my dead Fortwo battery? We recycle it! Nearly 100% of all lead-acid batteries are recyclable.
How much will replacing my Smart Fortwo’s battery cost if I get a DieHard battery? You can find affordable Fortwo 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? 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 Fortwo’s battery post? If you notice white, crusty stuff around the battery terminals of your Fortwo, 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 Fortwo’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.
How do I remove corrosion from my Fortwo 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 Fortwo 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 purchase Fortwo batteries near me? When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install Fortwo 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.