HP ProOne 600 Hardware Reference Manual page 39

6.
Slide the access panel latches toward the edges of the chassis, then slide the access panel toward
the top of the computer until it slides off the chassis.
Figure 2-30 Removing the access panel
The battery can now be seen on the lower right side of the fan.
Figure 2-31 Locating the battery
7.
To release the battery from its holder, squeeze the metal clamp that extends above one edge of
the battery. When the battery pops up, lift it out (1).
Replacing the battery
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