do not replace anything yet ! first check the electrical system . disconnect the negative cable , . x7 \0 [/ N4 U! 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 ,$ G6 [. n1 J0 T- e+ X& L% [. S% P
now you know in which that device is draining the battery .