Use a plastic opening tool to gently pry up the battery connector from its socket on the logic board.

Place the tip of the tool between the loudspeaker enclosure and the metal cover of the connector, and lift the bottom edge of the connector first.

The battery connector comes off vertically from the logic board. Do not apply force sideways.

Be careful not to pry at the battery connector socket itself, or it may detach from the logic board. There are four very small solder points awaiting this mistake!