Charging System Problem
 

I have a Suzuki Intruder 1400. I went to start the bike after it sitting a couple days, the battery was dead. I charged the battery and had it checked, and it is fine. I road the bike and when I got to where I was going it was dead again. I checked and the bike is not charging at all, ALSO there is a 5.5 volt draw from the battery all the time even with everything off. Is this a regulator problem? Or how do I check for the problem?