I have a project using 20 kg servos. Looking for the best circuit board and power source recommendation.
I've tried wall outlet to arduino uno into the 20 kg servos but doesn't seem like enough power. This setup properly operates the micro servos, but attaching the 20 kg-cm servos seems to require too much power (the micro-servos operate as intended, but the 20kg servo doesn't turn).
thanks!
Please post a link to the exact servos that you are using. How much current does their data sheet say they use ?
I hope that you are not powering the servos from the Uno 5V pin, or are you ?
Please post a schematic of your project
The power supply should be able to provide at least 2.5 Amperes per struggling 20 kg-cm servo.
This power distribution PCB and this battery (consider using two in parallel for more than 3 servos) will handle several at a time.
Thanks for the reply. I'm new to robotics, so sorry if I should have shared obvious details.
I'm using these servo motors: https://www.amazon.com/dp/B073F92G2S/ref=dp_iou_view_item?ie=UTF8&th=1
With an arduino uno
The power source is a wall plug into the external power source on the arduino.
Cool - these look more robust and might do the trick 
This is the critical specification of the servo you linked on Amazon.
Stall current: 2.4~3A
Servos briefly draw the stall current every time they start moving.
You have not answered the crucial question, ie
Please clarify exactly where the power for teh seros comes from