ATC battery drain

Emplacement23
Emplacement23 Forum Participant Posts: 7
edited May 2013 in Caravans #1

During a 36hr. ferry crossing is it worth disconnecting the c'van from the car to save battery drain from the ATC unit.  [ ie. How much current does an ATC use? ] On our last trip some drivers did disconnect while others didn't. Some drivers had dirty knees
from the car deck while the others didn't !!