The battery starts your car, learn more about how it works and when to replace.

How Batteries Work

A car battery stores chemical energy and converts it into electrical power when needed. This electricity is essential for starting the engine, powering the ignition system, and keeping your vehicle running.

In addition to engine cranking, the battery may also supply power to lights, infotainment, and other electronic accessories. If the alternator or drive belt fails, the battery can temporarily power the vehicle’s entire electrical system.

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Car Battery Glossary

Decode the jargon. Understand your battery. Explore the ultimate guide to battery terms every driver should know.

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Anatomy of a Car Battery

Ever wonder what really powers your ride? Go beyond the terminals and explore the hidden anatomy of your car battery—the unsung hero behind every start, stop, and road trip.

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How Your Car Starts

Your car doesn’t come to life with just a turn of the key—or push of a button. It all begins with the battery. Discover how this powerful component delivers the spark that gets everything moving.

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About Clarios

Every journey matters.
And so does the battery
that powers each of them.

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Clarios creates the most advanced battery technologies for virtually every type of vehicle. We are a global leader in energy storage solutions, powering one in three of the world’s vehicles. We partner with our customers to develop smarter solutions that make people’s lives better.