Dell XPS M1730 (M1730, Late 2007) - Manual (Page 82)

82 Battery Latch Assembly
8 Remove the spring from the hook on the computer base by lifting it up
and away with a screwdriver or a plastic scribe.
9 Remove the plastic battery-latch assembly starting from the right side
corner and proceeding towards the other end as shown below in the
illustrations.
1 screw 2 battery latch assembly
3 spring
2
1
3