Does anyone know the procedure for checking for a parasitic draw in a 1992 Dodge Dynasty?

THE BATTERY IN THIS VEHICLE WENT DEAD LAST WEEK. I HAD THE BATTERY RE-CHARGED AND TESTED, THE BATTERY IS O.K. IT WAS BOUGHT NEW 2 MONTHS AGO. THE ALTERNATOR WAS ALSO CHECKED, AND IT WAS O.K. ALSO. I JUST NEED TO KNOW HOW TO CHECK AND SEE IF THERE'S A DRAW ON THE BATTERY. ANY HELP WOULD BE APPRECIATED!!!!