The battery is the car’s nerve center. It is used to fire up the ignition, illuminate any lighting, and run electricity to major vehicle components, systems, and after market accessories. Without the battery, the car doesn’t run.
Routine driving and everyday use can wear down a car’s battery. From repeatedly turning the engine on and off, to parasitic draw (headlights, door lights, dome lights being left on for extended periods of time and the use of aftermarket accessories i.e. phone chargers), there are a variety of things that might slowly drain a vehicle’s battery. Even letting the vehicle sit for long stretches of time (months to years) without letting it run every week or two can wear out the battery. That being said, it’s always a good idea to have a backup battery before it dies.
The average battery service life is three to five years, also having a shelf life of three to six years (usually marked on the battery as its expiration date). It’s recommended to store batteries in a cool, dry place.
Selecting a battery
There are two types of commonly used car batteries: flooded lead acid (FLA) and absorbent glass mat (AGM). FLA has been the standard for decades, while AGM is a newer design that offers advantages in specific applications. While they both offer the same basic functions, FLA and AGM do not work interchangeably.
If a car has a start-stop system that shuts down the engine when stopped for long periods of time (i.e. at traffic lights), it likely needs an AGM battery. Generally, AGM battery designs ensure proper operation of the start-stop system while maintaining maximum battery life. It’s best to replace your battery with the same type of battery the car came with.
Please consult your vehicle’s owner’s manual for information about the battery type and voltage that is best for your car.
