So if I use one 2300 123 I can hook up both leads. If I only use one lead will I stll be getting the 2300 6.6v. I thought one of them was for a balance/charge and not to be hooked into the reciever. If I use 2 2300 123 batteries for longer flight times I can hook one battery up to the reciever directly and the other thru a Y connector via the throttle.