do not replace anything yet ! first check the electrical system . disconnect the negative cable ,, _2 R G9 X: u3 A) z
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 , 5 D% B H! L* ?; _- _- S4 Enow you know in which that device is draining the battery .