Battery drain issue

Cool idea! I may have to look into this also depending on what I find out. Thanks again.
i have done work with alternators over the years and you NEVER run an alternator with the output wire disconnected.that being said you still can test the drain from alternator by simply disconnecting the output wire and see if the battery stays up over a couple days.Do not start engine with output wire disconnected.I am betting your problem is the diodes in the alternator