Gauge Size for Powering 17 Servos

[JosephProject]

Hi,

I was thinking of powering 17 Servos using a 6V Battery Pack, which has a universal radio connector with 22AWG Wire. Will this gauge size be enough to power all these Servos connected in Parallel, keeping in mind that I do not expect all of the Servos to be activated at once (but perhaps a few), my project being a robotics one?

Thank you.

Joseph F

[joan]

http://www.powerstream.com/Wire_Size.htm suggests 7 amps. I doubt that would be enough unless you have miniature servos.

Servos can draw a lot of current when moving against a force.

I suggest you measure the current through the servos you plan to use.

[kriss]

what is your project ?
servo spec ?

[r4049zt]

The question is unanswerable until you've said how much current (either measured or from datasheet) you expect to put through each servo and how much current in total you'll use from time to time. As it is, they might be industrial ones for which AWG22 is definitely way too small. As the weight and cost of all the stuff attached to these servo's is going to depend on the current required, you do need to know this quite well or you might as well just read marvel comics about the power from the palladium ring in his chest.

[JosephProject]

Thank you all for your answers. Yes indeed, I hadn't provided much details about the Servos. These are Standard Servos (MG996R) for a Humanoid Robot having 17 DOF. The datasheet for the Servos specifies the Voltage (4.8 - 7.2 V) but not the amperage.

Joseph

[mikronauts]

You could measure the stall current, by stopping the servo from moving...

Thank you all for your answers. Yes indeed, I hadn't provided much details about the Servos. These are Standard Servos (MG996R) for a Humanoid Robot having 17 DOF. The datasheet for the Servos specifies the Voltage (4.8 - 7.2 V) but not the amperage.

Joseph

[ame]

The servos usually have a length of cable attached (three wires, power, ground, and signal). You could extend each cable using the same gauge of wire. If you are powering several servos from the same loom then increase the supply wire size accordingly.

[Goku_Pil]

Hi Joseph, were you able to succeed in doing the 17DOF humanoid? I'm attempting to do the same thing. I'm thinking of using the Servoblaster...any thoughts? suggestions? Also, do you recommend an external controller board?