Battery life in many cases is directly related to where you live. Here in Phoenix you run a risk after 2 years because of the heat. Likewise in the East, the cold weather is a battery killer. Even though LA isn't that hot, as others have said in this thread you are overdue for a new battery. A full discharge isn't necessarily good on a new battery and is really hard on a 3 year old one.

 

I took the car in and had a battery load test done on it. It came back registering “93% Good”…. so they didn't try and sell me a new battery. However, my instinct now is to get one anyway so that I don’t have to concern myself with it.