I will be posting this in the Blog as well, but as this is a new addition I'm posting it here as well. Please see the illustration below as a description of how to wire the Dean's plugs up in series. The wire indicated in white is simply the crossover wire to make them in series. Obviously you can make it whatever color you wish, I just showed it this way for clarity in the picture. This is done so that you are effectively creating a 4S battery system by straddling (2) 2S batteries, one on each wing, thus providing space for the turbine that runs straight through the middle of this plane. This also gives you more options for adjusting your center of gravity as needed.