i have a 2014 Oceanis 45 which is now on a cradle. I am getting ready to launch and was reconnecting the battery cables to the bow thruster and noticed a black box with a rubber button on top of it next to the circuit breaker. So of course I had to push it. Nothing happened for 5 seconds and then there was a clunk. I have since found this was the positive battery switch. I'm not sure if I turned it off or not. I can't check until the boat is launched and I can run the motor. Anyone else happen to do this? Not sure if I should push it again. Why did I push it the first time? Because it was there.