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4. Find the red and black connector shown. This connects the batteries to the UPS. Disconnect
the connector to disconnect the batteries. Do not pull on the wires as you
disconnect the batteries; instead, pull on the connector.
Fortress has hot-swappable batteries. If the UPS is off for any reason during battery
replacement, make sure you connect the new batteries promptly once you have
disconnected the old batteries. This will help you avoid losing any parameter changes you
have made as well as some UPS settings. If the UPS loses parameter changes, it will sound
a “CL” (Calibration Lost) alarm when you restart it. If this alarm starts, see
5. Pull on the tab to slide the batteries out of the UPS. See page 23 for
battery disposal.
6. Your new batteries should already have the cables and the red and black connector attached.
Slide the new batteries in with the battery terminals up.
7. Reconnect the batteries’ red and black connector to the matching UPS connector, red to red,
black to black.
8. Swing the panel closed and reattach the screw to fasten it shut.
9. Set the UPS upright again.
THIS SIDE UP WHEN OPENING
DOOR TO REPLACE BATTERIES
Remove this screw
CAUTION
Find the battery terminals that the cables are connected to. Make sure these
terminals do not contact any metal as you remove the batteries. Do not contact the
battery terminals with any tool or metal object.
Tab