S106-E-5213 (13 September 2000) --- Astronaut Edward T. Lu follows printed guidelines as he assumes the role of an electrician onboard the Zvezda service module on the International Space Station (ISS). Electrical work was the hallmark of the day as four of the mission specialists aboard ISS (temporarily docked with the Space Shuttle Atlantis) replaced batteries inside the Zarya and Zvezda modules while supply transfer continued around them.