Help ESC Fire

[fweasel]

You cannot run a 3 phase brushless motor from a DC current (Lipo battery). That's what the ESC is for. While technically, you can probably get a single rotation from applying a DC current to one pair of wires, it should in no way be deemed as a successful test.

[jkflow]

Correct, the motor is acting like a short circuit on any DC voltage, wires heating etc would be normal, and the motor would burn up quickly.
On DC you are only dealing with pure wire resistance which is very low in these motors.