Dell UPS 10000R - Manual (Page 69)

69 UPS Maintenance |
4 Disconnect the battery connectors (see Figure 35):
Locate the battery jumpers tucked into the small shelf at the top of the center post. Pull them off
the shelf and disconnect them.
Locate and disconnect the remaining battery connectors for the left and right battery trays.
Figure 35. Disconnecting the Battery Connectors
NOTE: The battery retaining brackets are labeled L (Left) and R (Right) to indicate where they must be installed.