do not replace anything yet ! first check the electrical system . disconnect the negative cable , . U& n/ p$ Z; y/ Z* \; x1 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 ,3 w$ Y/ y4 L/ W6 {. V
now you know in which that device is draining the battery .