Starting

My guess is that you have a slight drain on the battery or you have a bad cell in the battery itself. Try taking the + off the battery and hook up a test light from the battery terminal to the cable. If the light lights up then you have a small drain. You might want to bring your battery in and have it tested for free at most any major auto part stores or look for mabe a light that is staying on ie. In the glove box possibly even the light to illuminate the cigarette outlet good luck :)