WHILE REACHING HOME, I SAW SMOKE COMING OUT OF ENGINE, SMELL OF HEATED PLASTIC, AND THE ALTERNATOR WARNING LITE ON. SWITCHED OFF THE CAR AND OPENED THE HOOD. NOTED THAT THE SMOKE AND SMELL WAS COMING FROM THE PLASTIC FUSE BOX THAT IS ON THE TOP OF THE BATTERY AND THAT THE FUSE BOX COVER HAD BURNT HOLE. THE WIRE FROM THE ALTERNATOR TO ONE OF THE FUSES IN THE FUSE BOX HAD MELTED THE PLASTIC. I REPLACED THE FUSE BOX, CLEANED THE WIRE AND ATTACHED IT BACK. ON 6/23/15, I WAS UNABLE TO START THE CAR. THE BATTERY WAS WEAK AND NOTED THAT ONE OF THE FUSES IN THE BOX HAD MELTED THE PLASTIC.