Originally Posted by
johnnymax
Honestly, I thought your explicnation sounded too simple and was missing connecting the power to the receiver, but after more reading... It is that simple. I guess they made it almost idiot proof. Man the technology has come a long way.
Thank you!

By way of explanation.
Most ESC's until you get into the bigger stuff, have what's called a BEC or Battery Eliminator Circuit, that takes away the need for a separate receiver battery, so that when you connect the servo lead from the ESC to the receiver, you power the receiver with a regulated 5 volts or so through that connection, that is then distributed to the servos as well.
Larger electric planes do away with that and you run a separate battery to the receiver.