I own a 2007 Nitro. Recently my battery light came on a few days before it quit. I purchased a new one and the light is coming on again. I don't know if this has anything to do with it but my radio clock resets when I turn off the car sometimes. After changing the battery, the battery light is coming on again. I've made sure all doors are shut and no interior lights are left on when I get out. Any suggestions??