A surgical instrument, such as an endoscopic or laparoscopic instrument, comprising, according to various embodiments, an end effector comprising at least one sensor transponder. The surgical instrument also comprises a shaft having a distal end connected to the end effector and a handle connected to a proximate end of the shaft. The handle comprises a control unit in communication with the sensor transponder via at least one inductive coupling. The surgical instrument may be a power-assist motorized device including a battery for powering (at least partially) the surgical instrument during use. The surgical instrument may be adapted to provide user feedback regarding the load being experienced by the end effector.