I was on the go the other day, and tried charging my Apple Watch inside my briefcase while connecting to a battery pack for charging iPhones and iPads. It connected fine and the green charging icon was showing in the watch. However, the battery never went up significantly after periods of couple hours. I don't know if the issue was the watch disconnecting from the magnetic dock inside my briefcase while I was walking around, or somehow the battery pack could not drive the induction charger. Anyone has experience on this?