battery drain

1982, 305 Camaro. Battery is draining over night, once I jump it, its fine, til I park it for the night. In the morning I have to jump it again. Can anyone tell me how I can test for an electrical drain. thank you

Check your alternator and how long have you had the battery? If over a few years I might suggest fork over the 40-50$ for a new one. Then if it doens't fix it check alternator.