I have a 1990 honda accord lx and recently my battery light has come on. I got a brand new alternator and a brand new battery in it now, but the light still comes on. The last time I was driving it the light would come on whenever I reached 45. As soon as I went below 45 it would turn off. Then while sitting at a red light the light came back on and stayed on. We have checked the belts, battery and alternator and everything seems fine. So what would still be draining my battery?