This application includes systems and techniques relating to wirelessly rechargeable medical apparatus, such as a wirelessly powered medical system including: a wireless power transmitter; and a medical apparatus including a wireless energy harvesting device configured to receive at least one type of wireless power from the wireless power transmitter and be mounted on an exterior surface of a human body, a medical device configured to be implanted in the human body, and one or more electrical conduits configured to couple the wireless energy harvesting device on the exterior surface of the human body with the medical device implanted in the human body, wherein the one or more electrical conduits provide harvested electric power from the wireless energy harvesting device to the medical device.