do not replace anything yet ! first check the electrical system . disconnect the negative cable ,- r& {: }2 p' f: f* c/ c% @1 A
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 ,. p6 g i" Z, q: H+ L+ S
now you know in which that device is draining the battery .