ORIGINAL: IFLYBVM2
I have always used 4 cell packs up to this point, and have considered sticking with the 4 cell nicads (although using a big 2500 mah pack) and not having to use the regulator at all. Any opinions on using a 4 cell nicad with the Kingcat setup, or should I go with the 5 cell / regulator setup ?
My main concern, if I were doing a setup like that, would be : what is the voltage is at the furthest away servo - under all conditions (i.e with the RX pack not being totally fresh, with several of the other servos under load, etc. ?
The voltage may drop due to the load from the other servos, and it will drop to some extent over the long distance from the RX to the rudder and elevator servos. If the drop is significant then you not only lose out on power to those servos, you also may reach the point where the servos start hunting, or even stop responding. Using high quality connectors and heavy-duty wiring extensons can mitigate the loss over the long extensions, but using a higher voltage to begin with can help ensure that you still have plenty left at the end of those long leads.
Gordon