Fujitsu PRIMERGY BX620 S6 Service Supplement Manual page 38

Replacing the battery
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Figure 20: Replacing the CMOS battery
Ê Press the metal clip in the direction of the arrow (1) and remove the battery
from its holder (2).
Ê Take an identical lithium battery, press the metal clip in the direction of the
arrow (3), and insert the lithium battery into the holder (4).
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Avoid any contamination of the battery contact areas by grease etc.
Remove any existing fingerprints. When inserting the battery, hold it
only at the edges.
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Service Supplement
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BX620 S6