do not replace anything yet ! first check the electrical system . disconnect the negative cable , / [4 |8 ?4 s' {8 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 , i$ P. A8 u- K7 t7 Z4 ^
now you know in which that device is draining the battery .