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Power supply for a tethered drone

roineust

There is a drone which I'm experimenting with and want to move from batteries to a 2-15 meters 14AWG tethered cable.

The drone voltage is 15-21 Volts and consumes up to 200 Amps.

What would be the best method of searching for and the best brand, model and condition new or used, to find a good but not expensive power supply for the drone?

What are the chances that the following ebay unbranded power supply, would be a bad choice?

www.ebay.com/.../284832076705

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  • Aside from that very suspect power supply, the cable is not going to be cheap or light. Just look at the ampacity charts (learnmetrics.com/.../) and it seems you need something about 85mm^2 cross-section. That's jumper-cable thickness. The weight of that alone would also likely keep your drone tethered quite firmly to the ground ... The cost is also around US$30/m per conductor, multiplied by two for positive and negative. That works out to be US$900 of cable alone.

    - Gough

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  • Aside from that very suspect power supply, the cable is not going to be cheap or light. Just look at the ampacity charts (learnmetrics.com/.../) and it seems you need something about 85mm^2 cross-section. That's jumper-cable thickness. The weight of that alone would also likely keep your drone tethered quite firmly to the ground ... The cost is also around US$30/m per conductor, multiplied by two for positive and negative. That works out to be US$900 of cable alone.

    - Gough

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