do not replace anything yet ! first check the electrical system . disconnect the negative cable , . F! n9 k" g9 |2 Pconnect 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 , . y3 Y" K9 I3 _" b+ znow you know in which that device is draining the battery .