do not replace anything yet ! first check the electrical system . disconnect the negative cable ,2 Z' U( _; i/ `8 X+ Y
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 , 4 S& \% P& y4 z+ unow you know in which that device is draining the battery .