[samste]

Does anyone have a rough idea on what your basic small digital servo draws.
I have 9 of the little suckers in my Su 47 and am trying to work out what size BEC I need to supply enough power to stop brown outs.
I was going to put a 5 amp BEC in, I am pretty sure that it will be enough but if anyone has any suggestions, there is an 8amp one that is a little bigger that I could use but it will be a real hack job to fit in the aircraft not to mention the extra weight ???

Hi Gary

I did a watt meter Test with my servo tester and watt meter unit hooked up together on a 5.4 volts supply on a 9 gram small Digital Servo i Have

Results Below -
0.19 amps (190 ma) at 5.33 volts at no load test

Test Then Done holding back servo arm causing a load to servo but servo arm still moving.

Results Below -
.64 amps (640 ma) at 5.19 volts (THIS IS A LOAD TEST RESULT)

Hope this Helps as true readings are always different especially on load
Don't always believe specs on web as they are normally no load tests.

SO USE THE FOLLOWING
.64 X ( no of Servos) = Amps TOTAL if all ran at same time under LOAD

Eg .64 x 5 servos = 3.2 Amps IF All were on Load But Normally not all would be on extreme load but this would be worst case scenario

Hope This Helps

Steve