do not replace anything yet ! first check the electrical system . disconnect the negative cable , # p' w2 y" V% K' @2 u2 } F 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 ,7 H# ]5 V4 W6 c3 V2 k
now you know in which that device is draining the battery .