Your car’s battery is one of its most important parts. It’s responsible for keeping your car powered and ready to go. Whether you’re buying used auto parts or have been driving on the same battery for years, knowing more about this component’s lifespan is crucial for determining whether it’s safe and functional. Here are a few of the questions people often have about this device.

All You Need to Know About Car Batteries

How long do they last?

Your car battery will last around five years, but this can depend on many factors. These include how often the battery is charged, the weather conditions you experience while driving, and the model of your vehicle.

If you buy it as a used auto part, ask to have it tested for its effectiveness.

How can I tell if my battery is too old?

There are plenty of tell-tale signs that a battery is at the end of its lifespan. For example: 

• The “check engine” light is on: Among other issues, this could be a sign that your battery is undercharged or too old.
• Your battery is swollen: If the device’s casing looks puffed up, do not use it or touch it. This is a common sign of overcharging, and requires professional attention.
• It smells: If your battery is emitting a sulfur smell, it could be leaking liquids due to overheating. Do not handle the unit or drive the vehicle.
• Your car takes longer than usual to turn on: Slow cranking often means the battery does not have enough energy. This is also the case if the vehicle doesn’t start. You may be able to revive it with a jump-start.

Is driving on a malfunctioning battery harmful to the car?

The short answer is yes. A faulty battery may put undue stress on the engine as it tries to overcompensate for the low power. Since this damage is more costly than replacing the unit, visit a mechanic to perform a battery test when you notice any of the above signs.

How do I dispose of an old battery?

Old car batteries should always be recycled because they contain acids that are harmful to the environment. You can find battery recycling centers near you online.

If the battery still holds charge, you can sell it to a salvage yard for compensation.

Stewart’s Auto Parts is a reliable salvage yard serving the Barkhamsted, CT, community. Whether you have a used battery or a junk car, they will collect the usable parts of your old belongings to find them new homes. They also sell used auto parts for affordable replacements for your vehicle. Learn more about the parts they work with online or call (860) 379-7541 to ask about their inventory.