Are you pushing the servo? Also... there is a small ESC in the servo, so I'm not sure how the voltage would be coming back, since the transistors would be "open" when not in use.

Also... I seriously doubt 1.9v would cause any damage since the servo is connected to the Rx, and the feed voltage is 4.8v or higher.

Personally, the guys saying his ESC was damaged from servo back-feed is just reaching for straws.


Lastly... if the "Dynamo Effect" was a real issue... we would all know about it, since servo's aren't a new development in the RC word.