Stored my Harley last fall starting mid November. I put a Schaller 1.5 amp battery maintainer on it at that time. Today I fired it up and it turned over like it would while in use. I've owned the bike since 2002 when I bought it new. The battery is a gel-cell. This is the first time I've used the maintainer and was pleasantly surprised that it did its job. Previously I crossed my fingers as after being parked for 5 or 6 months it always turned over barely enough to start.
End of story.