do not replace anything yet ! first check the electrical system . disconnect the negative cable ,/ I8 z, r n# M* U7 ^* s; v3 }: k
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 , 9 j. I! {) k; d- M( G1 Fnow you know in which that device is draining the battery .