Dell Precision M90 - Manual (Page 3)

9. Remove the spring from the hook on the computer base by lifting it up and away with a screwdriver or a plastic scribe.
10. Remove the plastic battery-latch assembly by twisting the assembly slightly and lifting it out of the channel and away from the computer base.
Replacing the Battery Latch Assembly
1. Insert the latch assembly into the channel on the computer base, and press it into place.
2. Using a small screwdriver, hook the spring over the hook on the computer base.
3. Place the battery latch release under the computer base, line it up with the hole in the base, and then replace the screw in the assembly.
Ensure that the newly installed latch moves smoothly and freely when pushed and released.
4. Replace the hard drive bay and reinsert the four M2 x 3-mm screws.
1 screw 2 battery latch assembly
1 hook 2 spring
1 battery latch assembly