do not replace anything yet ! first check the electrical system . disconnect the negative cable ,5 \/ a3 C/ y0 w
connect 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 ,& F8 r$ l0 o" N* j
now you know in which that device is draining the battery .