In a hidden warehouse named Coppertops, several humans (called "human battery") are running on treadmills to produce energy, particularly to charge small energy cells, for the Calculator's army, under the supervision of the gloating robot.
The gloating robot is not hostile unless fired upon by the player. Even opening the lockers will not initiate unwanted combat.
On the far side of each pair of treadmills is a locker that you can lockpick and obtain 200 small energy cells, for a total of 1200 small energy cells. These small energy cells are regenerated over time.
Even though the "human battery" may beg the player to kill them, doing so will give the player huge amounts of negative Karma.