Come spring I am looking to change my battery for something good. Still get that "Charge system fault" every now and then and it has been to the dealer twice. They tightened up the connection below the battery but say all else looks good. It seems to come up when I have not driven the car for a week or so. I am getting the feeling it may be the battery not putting enough out. Seem to run down pretty quick also. Optima the best, or are there other suggestions? And where is the best place to get one? Thanks