do not replace anything yet ! first check the electrical system . disconnect the negative cable , 0 U9 h- Z" L5 Z( _2 {8 @3 Rconnect 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 , ) b" w: ~' R: s5 r; J& H, {now you know in which that device is draining the battery .