Battery drain... (.2v per night)

[MrJoel]

Ok electrical engineers out there...or just our regular guys who could have/ should have been one. I am losing .2v per night on my battery. The batter tests fine and doesn't drop while disconnected. The previous owner did a naked conversion and the bike has the clutch, neutral and sidestand safety bypassed. It's not a big deal when I'm riding every day but if I miss 4-5 days and it's cold out...it ain't gonna start. Where to start in my super limited time?