MGM Compro 16016 - NEED HELP

[BrianG]

Two servos under load will draw far more current than one turning nothing. IMO, until ESCs start integrating switching BECs, it's a good idea to run a UBEC on anything over 7-8 cells, especially when running multiple servos.

I really don't know why it fried the servos though. Usually, when a linear regulator is overloaded, it shuts down. Some receivers can take higher voltages than most servos. Spektrum receivers, for instance, can take 9.6v according to the manufacturer (IIRC).