A surgical instrument system (100), comprising: a surgical instrument (110) an accessory (120) removably mounted to the surgical instrument (110) and an energy device (130) coupled to the accessory (120) while the accessory (120) is coupled to the surgical instrument (110) such that the energy device (130) powers the accessory (120) characterized in that: the accessory (120) includes a first contact (124) and the surgical instrument (110) includes a second contact (115), wherein the energy device (130) transmits power to the accessory (120) upon contact between the first contact (124) and the second contact (115).
