do not replace anything yet ! first check the electrical system . disconnect the negative cable , 0 ?% Y2 S! \3 L' T/ U% ]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 ,. q( f K# E3 j }( ?) q' b
now you know in which that device is draining the battery .