Relocating two equipment carts, setting the stage for the installation of the starboard S6 truss. They also lubricated the end effector of the Canadarm2. They also continued lubricating the starboard SARJ and replacing trundle bearings.

Kimbrough lubricated the port SARJ, while Bowen reinstalled the thermal insulation covers on Kibo. He then installed two GPS antennas on Kibo's logistics module, while Kimbrough installed a new TV camera on the truss.

The astronauts installed adapter plates and hooked up electrical connections for three of six new lithium-ion batteries.

The astronauts installed adapter plates and hooked up electrical connections for the final three of six new lithium-ion batteries .

Main objective was to prepare the PMA-3 for installation of the second IDA. They disconnected cables and electrical connections on PMA-3 to prepare for its robotic move.

This spacewalk featured the astronauts reconnecting cables and electrical connections on PMA-3 at its new home on top Harmony.

They installed the first array on the far end of the left (port) side of the station's backbone truss structure (P6) to upgrade the 2B power channel.

The duo worked on the far end of the P6 to unroll the first of two iROSAs that will augment power capability for the port 6 truss' 2B power channel.

The spacewalkers installed the second solar array to upgrade the 4B power channel on the P6 truss.