Many things are now accessible, including the battery, SSD, and Wi-Fi card

Detach all the accessible ribbon cables, and unscrew the 6 small and 4 really small screws holding the battery in place (locations shown)

The cables running along the left and right sides of the battery will need to be pulled out of the clips holding them in place

NOTE: The battery does not need to be removed to access the SSD or Wi-Fi card