Changes

The best solution when using high power servos is to use the MICROBEAST PLUS HD which supplies a switchable high power input!

 

On the other hand it is a very good practice, when using such high power servos as mentiond above, to decouple the servo power completely from receiver and microbeast and use a regulator as power supply or some kind of power bus/power distribution system (which simply may be connecting the power wires from the servos directly to the battery). So voltage loss and internal resistance are reduced to a minimum (the higher the current and the higher resistance, the more voltage you will loose!).