Battery pack, Removing the battery pack, 2 shut down the computer and turn it over – Dell Alienware M17x R3 (Early 2011) User Manual
Page 13: 4 remove the battery pack

Battery Pack
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2
Battery Pack
WARNING:
Before working inside your computer, read the safety information
that shipped with your computer. For additional safety best practices information,
see the Regulatory Compliance Homepage at
www.dell.com/regulatory_compliance.
CAUTION:
To avoid electrostatic discharge, ground yourself by using a wrist
grounding strap or by periodically touching an unpainted metal surface (such as a
connector on your computer).
CAUTION:
Only a certified service technician should perform repairs on your
computer. Damage due to servicing that is not authorized by Dell is not covered by
your warranty.
CAUTION:
To avoid damage to the computer, use only the battery designed for
this particular Alienware computer. Do not use batteries designed for other
Alienware computers.
Removing the Battery Pack
1 Follow the instructions in "Before You Begin" on page 9.
2 Shut down the computer and turn it over.
3 Slide the battery latch to the unlock position as shown.
The battery pack pops up.
4 Remove the battery pack.