Dell Alienware M14x R2 (Early 2012) - Manual (Page 68)

Procedure
1 Disconnect the coin-cell battery cable from the connector on
the system board.
2 Gently pry out the coin-cell battery from the slot on the computer base.
2
Replacing the Coin-Cell Battery
Procedure
1 Use the adhesive on the coin-cell battery and adhere it to slot on
the computer base.
2 Connect the coin-cell battery cable to the connector on the system board.
1
1 coin-cell battery cable 2 coin-cell battery
Coin-Cell Battery 70