MGM 16016-3s -- BEC how many cells?

[RC-Monster Mike]

Jonathan,
I think you only actually ordered one set of connectors. I threw the extra set in because I figured that you were using them for the controller. Good call on the wire, though. I thought I listed the plugs in the controller listing, but I will edit the listing to recommend some wire as well.
The switch turns off the signal to the controller, but power will still go through it when it is plugged in-don't leave it plugged in for ny length of time without using it. As Trvis mentioned, simply remove the red receiver plug wire to disable the BEC.