The oddest thing happens to my Prius. I'll drive it for the day like normal. I'll pull into the garage, turn off all of the lights and accessories, and turn off the car. 12 hours later, I get in, and after driving ten feet, the battery goes down 1 bar. After driving 100 feet, the battery goes down two bars. I didn't gun it or anything. It bothers me as it kills the gas milage. Once it got down to only two bars, and that scared me because what if I go into the garage with only two bars. It doesn't do it any other time when I drive it, and park it outside. The garage is at 65 degrees, so I doubt its that. Anyone have any ideas?