The old battery in my 40 chevy was acting dead, it is a 14-year-old used optima out of the dragster, so I charged it. Then the starter was balky, so I rebuilt it. Still had the battery problem so I replaced it. Today, the new battery was dead, last night as I was turning the shop lights off, I noticed that the interior of the car was glowing, one of the map lights was on. My 5-year-old gearhead grandson was the last one besides me in it. lol.