Parasitic draw question

[Ken47]

In my 47 Ford coupe I have a parasitic draw. It will drain the battery in about a week. The battery is new. I have pulled the fuses one at a time to check the circuits, but can't find a problem. I checked the diode trio in the alternator and it checks out as OK. I was wondering if a relay can cause a parasitic draw but still function as intended. I'm using relays for the headlights (hi/lo beams) , brake lights and rad fan in addition to the horn, 4 way flashers and the signal lights. Any thoughts would be greatly appreciated.

 

[Old Ray]

If the rad fan has a temp controller its memory uses micro power, or the radio clock. I have given up and gone to this, perfect for winter storage (along with a battery tender) :

 

[slim]

you shouldn't see more than a 50 milliamp draw on your battery key off testing to the neg side of the battery .05 amp if its higher its a matter of disconnecting stuff till it drops if its not your battery is no good.