Hi. I took my 2010 S40 to the shop after my battery died as I thought there was a draw. I had a 3 year old Duralasr Gold battery. The car sat unused for 4 days

He tested the car and agreed. This was about 20 minutes after the car was off. He later called and said there is no draw.

He said the initial reading was too close to shut off and the car requires about 30 minutes to go sleep.

Does this seem right? 30 plus minutes after turn off the car reduces drain on the battery?

Thanks