Dell UPS 10000R - Manual (Page 11)

9 Installation and Startup |
CAUTION: The batteries are heavy (32 kg/71 lb). Use proper lifting techniques when removing the batteries.
8 Remove the battery trays from the UPS:
Move the disconnected UPS battery connectors at the top of the battery compartment out of the
way.
Grip the two plastic loop tabs on the front of the battery tray. Pull the tray toward you to remove.
NOTE: The orange PULL HERE labels indicate where to grasp the loop tabs.
Set the battery tray on the Styrofoam section you removed from the top of the UPS.
Repeat with the second battery tray.