quick question that should be a breeze for you all, it's been so long since i hooked up a flight pack. the switch has 2 wires coming from one side and 1 wire from the other. the side with the two wires, one goes to the reciever and the other one? i'm ready to fly, and everthing works fine just have an extra wire. maybe it doesn't even get hooked up!

That wire is for hooking up the charger without disconnecting the battery from the switch. You can charge the battery then leave the wire inside while flying, or let the wire hang outside running it between the wing and fusilage, or hook the wire up to one of the little switch/charge combo thingies.

And you can hook your voltmeter up to it to see how much power you have left . . .