Various embodiments are directed surgical devices and systems and methods for use with a surgical device to harvest energy from a surgical generator. The surgical device may comprise an energy storage device. The energy storage device may be in electrical communication with a surgical generator connection to provide energy from a surgical generator to charge the energy storage device and in electrical communication with at least one load component to be powered by the energy storage device. The surgical device may also comprise an end effector at least one energy element for treating tissue. The at least one energy element may be in electrical communication with the surgical generator connection to provide a therapeutic drive signal to the energy element.
