Originally Posted by Overtorqued

1. ESC is calibrated. I also re-calibrated to make sure in case it had somehow lost the calibration. Makes no difference.

2. I had the lipo cell count set to auto, but I tried setting it to 4s. Makes no difference.

3. Correct, motor is within allowed spec.

4. Both motors I tried are sensorless.

5. Temps were fine. I did let it sit for about an hour and cool. Makes no difference.

This problem occurs even with no load on the motor. Wheels in the air, or with the motor out of the mount. It's not load related. I understand how voltage dips with a load on the battery, but the pattern I described occurs regardless of load (even with no load other than the motor by itself).