Well it is seems it lasted 3 1/2 years which is good. What you can do now is get it replaced. So go to the dealership where you bought it and have them replace it with a new one. It should cost you anywhere between 50 and 80 dollars. Depending on what size of battery and type "like is it a 600/450 cranking amps or is it a 800/650 canking amps." that your car requires.