Loosen the 9 screws from the bottom cover with the Phillips #1 screwdriver. NOTE: You don't need to fully remove the screws. They will remain attached to the cover.

Once all of the screws are loose, use the opening tool to pry the cover from the frame. NOTE: I like to start near the hinges as shown in the pictures. There is a gap that allows for enough leverage to open the cover.

Locate the ribbon connecting the battery to the main board. Firmly grip the attached fabric and pull away from the main board.