Dell Alienware M17x R3 (Early 2011) - Manual (Page 74)

CHAPTER 4: INSTALLING AND REPLACING COMPONENTS
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Replacing the Battery Pack
This battery pack can easily be removed and replaced. Ensure that the laptop is properly shut
down before changing the battery pack.
CAUTION: To avoid damage to the laptop, use only the battery designed for this
particular Alienware laptop. Do not use batteries designed for other Alienware or Dell
laptops.
To remove the battery pack:
1. Follow the instructions in “Before You Begin” on page 68.
2. Shut down the laptop.
3. Turn the laptop over.
4. Slide the battery latch to the unlock position as shown.
The battery pack pops up.
5. Remove the battery pack.