Originally Posted by Randy_Pike

That's a pretty board question to answer simply because it depends on the servos, how many,etc.

In general the voltage should be above 7v under most loads when on the HV setting. Of course there can be spikes that go lower under severe loads.

In testing we've had no issues with brown outs running HV servos from various manufacturers on the Rx8 gen2 with multiple brand receivers and radio systems.