Engine starting is the primary function of an automobile battery. Today’s cars are complex systems loaded with electronic equipment. At the heart of it all is the battery. It’s crucial as it powers everything from the car’s ignition to onboard entertainment systems. The typical lifespan of a car battery is three to five years. When a battery is roughly three years old, pushing it further—even in ideal driving conditions—can result in an unexpected failure.
Several factors that can affect battery lifespan, such as extreme temperatures, harsh climate conditions, frequent short-distance driving, or simply not using the car for a few weeks, may slowly wear down the battery. The older the battery, the highe