do not replace anything yet ! first check the electrical system . disconnect the negative cable , 2 c0 P: E5 z0 aconnect 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 q& }# Y9 N" T5 M3 O4 U" P
now you know in which that device is draining the battery .