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Get a dependable car battery from AutoZone. With proven tough coverage from Duralast, premium performance from Optima and Odyssey, and economical buys from Valucraft, AutoZone has the right car batteries you need to stay on the road.

Proven tough Duralast batteries fit most modern makes and models, from everyday driving to performance. Duralast batteries are perfect car batteries for Honda Civic or Ford Mustang battery replacement. Backed with a two-year nationwide warranty, you can drive confidently with the rugged dependability of a Duralast Battery.

Which kind of car battery should I purchase?
Go with a Duralast Gold or Platinum Battery for premium performance and extra power for high-energy consumption vehicles. Duralast Gold and Platinum Batteries carry three-year nationwide warranties. For extreme or specialty performance, AutoZone carries Odyssey performance batteries and Optima gel batteries. For an auto battery replacement at the lowest price, Valucraft batteries can get you back on the road with the lowest impact on your wallet. We also have Econocraft batteries with prices starting at $69.99.

Why should I change my battery?
Car batteries wear out over time, and extremely hot or cold weather can speed up a good battery’s demise. That’s because your battery converts chemical energy into electricity using the anode, cathode, and electrolyte. Damage to any of these three parts can prevent it from working correctly.

The cathode and anode are the respective positively and negatively charged sides of the battery, and the electrolyte is a buffer between the two. The chemical reactions inside cause a buildup of electrons in the anode. Just like magnets, these similarly charged particles repel one another, but are blocked from moving to the other side of the battery by the electrolyte. That means that negatively charged particles need to travel through something external to the battery to circumvent the electrolyte and reach the cathode, where particles carry a positive charge.

That’s where your car comes in. Your vehicle’s electrical system provides a path for electrons to travel when the positive and negative terminals are hooked up, and this travel provides electrical current to your vehicle.

You can learn more about how car batteries work and how you can work on them from out helpful guides below:
- How to tell if your car's battery is dead
- What to do if your battery is dead
- How to jump your car's battery

How long does a battery last?
Most batteries last 3-5 years. If your battery is 4 years old or older, your car or truck battery is at risk. If you’re worried, AutoZone offers free battery testing and charging service to check out your current battery. We'll even take care of the old one with battery recycling. When it’s time for a replacement, we’ve got the right battery to get you back on the road.