do not replace anything yet ! first check the electrical system . disconnect the negative cable , : G6 A5 M Y9 }. W; r6 iconnect 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 , O; h1 A! z+ e: z3 fnow you know in which that device is draining the battery .