dc motor Voltage 18V At no load Speed 5600 rpm Current 0.85 amp At stall extrapolation Torque 4569.6 g.cm Current 15.858 amp At maximum efficiency Efficiency 60.62 % Speed4547 rpm Torque 859 g.cm Current 3.671 amp Output 40.127 watts At maximum Output Speed 2800 rpm Torque 2284.8 g.cm Current 8.354 amp Output 65.720 watts Efficiency 43.70 %