Originally Posted by
kdunlap
The stall current is what you need to worry about. Here’s a link to an example of stall current at various voltages.
https://www.servocity.com/hs-7950th-servo With a non HV receiver you need to make sure that the connectors inside can handle not just the voltage but the current as well. Worse case is stall current. Sorry if I wasn’t clear before.
While I'm not sure about the Frsky receivers, most receivers these days use multi plane boards with more than (1) power carrying land between the various servo pins. I can't say I've ever heard of a receiver having a board problem with regards to current on the power buss. With regards to HV and servos, for a given amount of torque, with HV there will be less current than an equivalent torque LV servo.