Dell Alienware M14x (Early 2011) - Manual (Page 74)

CHAPTER 4: INSTALLING AND REPLACING COMPONENTS
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Loosen the two captive screws that secure the battery pack to the computer base. 5.
Disconnect the battery pack cable from the connector on the system board. 6.
Lift the battery pack off the computer base. 7.
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2
3
1 battery pack cable 3 captive screws (2)
2 battery pack