do not replace anything yet ! first check the electrical system . disconnect the negative cable , ( q# Q9 E. j2 ]7 jconnect 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 , ; M4 i) v r, j+ l2 dnow you know in which that device is draining the battery .