91 Kawasaki Vulcan 750 battery draw

[tufftom4]

I have a battery voltage draw on my 91 Vulcan 750 that I got a couple months ago I replaced the rectifier and put in a new AGM battery when it is running the volts are around 13.5v when I park it and use the tender it keeps the battery charged but if I leave it off of the tender it will die in around a day and I checked the battery to make sure I didn't get a bad one and it is fine.I have no accessories on it so I don't have a clue what would be drawing on the battery if anyone has some info give me a shout.