Power supply for Arduino - Hexapod

Thank you very much, I take your tips very seriously, but I wonder about the movement quality of the "light servos"? For example, when I watch the movements of the Freenove Hexapod, they appear very shaky, weak and jerky. I assume that this is caused by inferior servos... or by sloppy programming?

Regarding your example with the C-factor...can you tell me what this model looks like...

Schnelllade-Powerbank: 20.000 mAh, 2 USBs (sbsmobile.com)

(sorry for german datasheet, i hope u can translate it)

I own one of these and thought I could use it for the bot, but i guess its to weak in Voltage.

PS: What u think about those : Power HD Servo HD-1900MG

Servotyp Micro-Servo
Servo Technologie Analog
Torque 1.50 kg/cm
Servo speed 0.08 s
Voltage range 4.80 - 6 V

2.30 cm x 1.22 cm x 2.77 cm
Weight 14 g

I chose them because of the metal gears and for aesthetic reasons.. (black) ^^ i dont trust those plastikgears :thinking: