Why might the battery on a 2000 Buick LeSabre go dead overnight a few times a year?
I am having a simular problem with my 99 Regal LS. Sometimes my wife drives my car to work, a couple of times when she was ready to drive home the battery was completely dead! Needless to say she wasn’t pleased! I had to come and remove the battery, take it to nearest auto parts store for a quick charge then reinstall the battery. At first I thought this might be caused by the door lights, However, It was odd I never had this problem when I drove the car. I will elaborate more on this point in a minute. I started doing some research and found some helpful info on another automotive forum message board. Key items I searched for on the other message board are “battery rundown protection” and “retained accessory power”. I found someone with a 98 Pontiac that was having a dead battery problem. It turns out an amplfier in the stock stereo system was staying on causing a parasitic drain on the battery. This could be relevant to my situation because my wife listens to radio going to work and
