[Ether]

See notes embedded in red:

Originally Posted by theprgramerdude

I don't know if I'm doing this right (actually, I'm pretty sure I am), but if you input 28.6 Amps at 12.8 Volts, that's equivalent to 366 watts of electrical power being put into the system. Yes, that's how you would calculate the electrical power into the motor at stall. There is zero power output at stall.

350 watts of output power translates to >90% efficiency for a 12V motor, something that is ridiculously high. There is no mechanical power output at stall. You can't divide the 350 by the 366.

Or, maybe I'm reading this wrong, and you're simply stating that it can pull about 350 watts of power, and not the output power. Power rating should be the mechanical output power. See this post for how it's calculated.