KamikaziRcPilot

I'm using three different Castle Creation Phoenix speed controllers and I'm curious what the minimum acceptable voltage should be. I made an adapter that allow me to connect my Hangar 9 variable load voltmeter to an unused channel on a receiver. I can monitor the voltage under different conditions.

Using a Phoenix 35 ESC, I connected a Sombra Shadow 3 receiver, three Hitec HS-56 servos, and a Hitec HS-50 servo. Sitting idle, the receiver bus voltage is 4.90 volts. When I simultaneously exercise all four servos, the voltage dropped to near 4.00 volts. I tried this same process using a Phoenix 25 and a Phoenix 10 ESC and received similar results.

I also used a four cell NiCad receiver pack instead of using the power supplied by an ESC BEC (I feel like I'm back in the military again when I talk like that...), and the idle voltage was around 5.20 volts, and it dropped to about 4.85-4.90 volts under load.

I'm hoping the lower voltage from the ESC's are ok.

Any input?

Thanks....

themoster

Check the receiver specs...Many receiver use 4.4 volt regulators which me if you go below that erratic receiver operation is possible.