hert:
I am trying to find the actual current because it does make a lot of sense that it is not 500 mA. From there what is the equation to find the exact current I need for the motor I am working on If it is lifting its full potential. My plan for the project is to be lifting almost the full weight but I am adding a few more amps to the final amperage of the 8 motors for additions later on.
One more equation for your project is to determine if the moving weight will be held against gravity and the servo motor stalled and holding that position. If holding or if the moving takes a long time you need to have a way to dissipate the heat generated in the servo motor.
Paul