How to remove the Battery for XPS 15 (L521x)

This video will demonstrate the removal procedure of a Battery for XPS 15 (L521x).

1. Disconnect the battery cable from the system board.
2. Remove the screws that secure the battery to the palm-rest assembly.
3. Lift the battery off the palm-rest assembly.
4. Turn the computer over and open the display as far as possible.