Fujitsu PRIMERGY TX140 S1 Upgrade And Maintenance Manual page 269

Expansion cards and backup units
Figure 139: Removing the BBU from the BBU holder
Ê Fold up the BBU (1) and at a slight angle remove it from the BBU holder (2).
Figure 140: Disconnecting the BBU cable from the BBU
Ê Carefully disconnect the BBU cable from the BBU.
Upgrade and Maintenance Manual 269
TX140 S1