Dell XPS 12 (9Q33, Mid 2013) - Manual (Page 23)

Replacing the Coin-Cell Battery
WARNING: Before working inside your computer, read the safety information
that shipped with your computer and follow the steps in "Before Working Inside
Your Computer" on page 7. After working inside your computer, follow the
instructions in "After Working Inside Your Computer" on page 9.
For more safety best practices, see the Regulatory Compliance home page at
dell.com/regulatory_compliance.
WARNING: The battery may explode if installed incorrectly. Replace the battery
only with the same or equivalent type. Discard used batteries according to the
manufacturer’s instructions.
Procedure
1 Adhere the coin-cell battery to the keyboard.
2 Connect the coin-cell battery cable to the system board.
3 Route the coin-cell battery cable through the routing guides.
4 Connect the I/O-board cable to the I/O board and the system board.
Postrequisites
1 Replace the battery. See "Replacing the Battery" on page 14.
2 Replace the base cover. See "Replacing the Base Cover" on page 12.
Replacing the Coin-Cell Battery | 23