do not replace anything yet ! first check the electrical system . disconnect the negative cable , 4 Y9 P6 _% I$ x0 {2 Vconnect 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' g; K7 V `5 K: S L8 ^" ]7 `% m( lnow you know in which that device is draining the battery .