do not replace anything yet ! first check the electrical system . disconnect the negative cable ,& N2 J) @+ L" g2 v4 |/ F4 O
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 ,, ` N9 S! N) t/ t, Y6 B
now you know in which that device is draining the battery .