Does anyone know how to figure out how to calculate a motor's output when used as a generator based on the manufacturer's specs for its operation? ie. Small, but powerful DC motor. 0.40" x 0.32" x 0.66" long. Operates on 1.5 - 3.6 Vdc. 110mA @ 3Vdc, no load. 500mA with load. http://www.allelectronics.com/make-a-store/item/DCM-299/1.5-3.6-VDC-MOTOR/1.html" I'm trying to figure out what various motors are capable of without having to buy all of them. Thanks!