do not replace anything yet ! first check the electrical system . disconnect the negative cable , ) |- n# D$ ]* h* A" O9 T B6 @' zconnect 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 , % C6 {- ~2 l8 J1 c$ J" X$ P! Z. `now you know in which that device is draining the battery .