No Switch for me, just plug my lipo with an XT60 on it straight into the mating XT60 that has a pair or even 3 sets of 18awg silicon wires soldered to it. 2 pairs of wires into the V-bar, and another pair into the S-bus Rx.
I have this on my N5c for nearly 300 flights now with never an issue, plus the same on many other machines like both Goblins, my TDR etc.