Why doesn’t my Flex battery stay charged?

A battery is in its final hour when it will no longer hold a charge. It may be getting old. Or, you’ve been leaving the doors slightly open and the cabin light at 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 happens to my old Flex battery?

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

What’s the cost of DieHard batteries for Ford Flexs?

You can find affordable Flex 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 Flex’s battery post?

The white, flaky stuff that can build up around your Flex’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 Flex, 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 Flex vehicle battery?

Regularly inspecting and cleaning your battery terminals will help keep your Flex’s electrical system running smoothly. Before cleaning, reference your owner’s manual for instructions on how to disconnect the battery cables. Once the cables have been disconnected, gently clean the terminals with a mixture of water and baking soda, a wire brush, and a rag.

Where can I find a battery for my Flex?

At Firestone Complete Auto Care, we make it easy to get a new car battery. Our stores sell and install Flex batteries, and our Firestone Direct mobile vans can even come to you for added convenience. Check out our mobile battery services to learn more.

2011 Ford Flex Batteries

Get a New Ford Battery

Get a New Ford Flex Battery

The middle of nowhere is the wrong place to have a weak battery. Shop replacement batteries for 2011 Ford Flex today and schedule a quick installation at Firestone Complete Auto Care.

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The Right Battery Size for a 2011 Ford Flex

Researching battery replacements for your Ford Flex? Use this chart to find the right battery size and CCAs for your Ford Flex.

Battery	Engine	Warranty		Cold Cranking Amps
65-1	V6/3.5L	Replacement 24 months	Performance months	850
65-2	V6/3.5L	Replacement 36 months	Performance months	850
65-AGM	V6/3.5L	Replacement 36 months	Performance months	750

BATTERIES
V6/3.5L - Battery: 65-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 850
V6/3.5L - Battery: 65-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 850
V6/3.5L - Battery: 65-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 750

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Buy the Right Battery for Your Ford Flex

You can pretty much drive your Ford Flex until you don't want to anymore. But your Flex'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 Ford Flex battery before it fails and leaves you stranded. Look out for symptoms of a faulty car battery. A lagging starter, an illuminated battery or check engine light, bloated battery case, corroded battery terminals, or dim headlights may all indicate that your battery is on its last leg.

You can also get a Free Battery Test at your local Firestone Complete Auto Care. With computerized testing we can see how much charge is left in your battery. Visit us for a complimentary battery check and, if needed, get your Ford Flex a replacement battery. Car batteries are one of our many specialties! Our expert technicians understand Ford service recommendations for Flex battery cold cranking amps and reserve capacity. Get help identifying the type and size of battery that's best for your Flex, and schedule a weekday or weekend battery replacement service for your car.

Why Choose a DieHard Battery for Your Flex?

We only want what’s best for your Ford Flex, which is why we exclusively carry the best. Your Flex needs a reliable, durable and powerful battery in even the most extreme conditions. DieHard Flex batteries surpass expectations using the latest innovative technology to satisfy the expanding power requirements 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 Flex and drive with confidence knowing that your battery will perform when you need it. That’s why you should choose batteries from Firestone Complete Auto Care.

After Buying 2011 Ford Flex Battery

Have you recently had a fresh battery installed in your Ford Flex? Good thinking! 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, keeping your battery posts clean, and not playing the radio or using other electronics when the engine is turned off.