do not replace anything yet ! first check the electrical system . disconnect the negative cable ,$ A2 @$ S' Q9 O" D& M$ p
connect a test light between cable and battery post . if the test light lights up bright , there could be a short circuit somewhere . pull out each fuse to see until the test light goes dim , ( I+ U1 ^, h V6 e& znow you know in which that device is draining the battery .