It's important to do so every once in awhile. Battery failure is currently considered the leading cause of car breakdown in the United Kingdom. Your battery is absolutely vital to both starting your car, as well. The spark plugs cannot fire on without a charged one, even if the rest of the vehicle is completely fine. It could be worth far too much to neglect it.
The most common type of failure is down to the battery simply running out of power (going flat). More strain has been placed on these batteries of late due to the rise of in-car electronic entertainment. Common driver mistakes such as leaving the lights on while parked can easily deplete the charge and lifespan of the unit, as