Giving your Alienware laptop a new lease on life is easy with the Dell PMT8K / PJ7JP 96 Wh battery. Whether you’re replacing an old, worn-out battery or just performing maintenance, this step-by-step installer guide for Alienware 18 Area-51 and 16 Aurora models will walk you through removing the base cover and battery safely and efficiently.
Why Replace Your Battery?
- Shortened runtime: If your battery no longer holds a useful charge or drains rapidly.
- Unexpected shutdowns: Laptop turns off suddenly even when battery shows some charge.
- Charge slow or not at all: Charging stuck at low percentage or doesn’t charge beyond a certain level.
- Physical damage or swelling: Visible battery deformation or pressurized shell—dangerous and needs prompt replacement.
- Frequent reboots or stability issues: Indicates unreliable power delivery from the battery.
Removing the Base Cover
Steps
- Remove the four screws (M2.5×6.5) securing the base cover to the palm-rest and keyboard assembly.
- Loosen the four captive screws holding the base cover.
- Use a plastic scribe to gently pry open the base cover from the bottom-left corner, working along the edges.
- Lift the base cover by holding its bottom center and slide it off.
Illustrations




Removing the Battery
Steps
- Disconnect the battery cable from PBATT1 if not already done.
- Remove the eight screws (M2×5) securing the battery.
- Carefully lift and remove the battery.
Illustration

Where to Buy
Buy the original Dell PMT8K / PJ7JP battery at
Upgrade-My-Laptop.
