Under the hood, your car relies on a relatively small component to get up and running: the battery. Unfortunately, even this powerhouse will eventually reach its expiration date. If you’re hoping to take better care of your car battery and avoid an emergency towing call, take a look at these answers to frequently asked questions on the topic.

What You Need to Know About Car Batteries

How do they work?

Just like the batteries you put in electronics, your car battery contains chemicals that react with each other to produce energy. This energy is converted into electrical power, which is delivered to the starter. This is the component responsible for starting the engine. The starter also sends its energy to other electrical components in your car, such as the radio and lights.

How long do they last?

On average, car batteries last around three years, but in some cases, they can last up to five or more. The lifespan is significantly affected by weather conditions, as batteries are vulnerable to extreme cold and heat. Battery life may also be shortened if you constantly use the electrical components in your car, such as the phone charging port or radio. If you regularly take short trips (fewer than 20 minutes) or drive over rough terrain, the lifespan is also shortened. 

How do I know when my battery is failing?

If your car battery is on its way out, the “check engine” light might appear on your dashboard. Your engine might also have a sluggish start when you turn the ignition. Other red flags include a sulfurous odor similar to rotten eggs, or a swollen battery casing.

What should I do if mine fails? 

If your battery fails and your car engine won’t turn on, you might be able to reignite its power with a jump-start. This requires another vehicle with a charged battery. Clip jumper cables between the two cars to transfer some of the charge. Don’t attempt this method if the battery is damaged. Signs of damage include leaking fluids, swelling, cracks, and rust.

If the jump-start doesn’t work, you’ll need to call a towing company to bring your vehicle to a mechanic for a battery replacement.

If you’re ever stranded with a dead battery, turn to AM Towing of Big Bend, WI, for help. Since 2000, they have been helping drivers get out of inconvenient situations caused by car trouble or collisions. Their technicians are on call 24/7, so you can always count on reliable assistance. Visit their website to learn more about their services, or call (262) 662-9770 to request towing.