It sounds like you have an excessive "Parasitic draw" problem. It is called parasitic because when the car is not running, certain components feed off the battery, such as the computer, clock etc. When other components like a dome light is left on, it will take more energy then the battery can supply in a short time draining the battery
Find the draw on the battery. Have someone watch the reading as you pull one fuse at a time until the draw falls. That will be the troubled circuit.
Look in your e-mail for another thought.
Wednesday, January 10th, 2007 AT 8:55 PM