Grasp the Interposer with tweezers.

An interposer is the name for an interface that links one electrical connection to another. In this repair, it is the board connecting the battery to logic board.

Lift the Interposer off the logic board and remove it.

Removing this board will ensure that the battery remains disconnected throughout your repair, preventing your computer from accidentally powering on. It's also a good idea to take it out so it doesn't fall out unexpectedly.