To remove input power to change the battery modules, complete the following
steps.
Note: Qualified personnel can replace internal batteries without shutting down the
UPS and without having to remove the UPS from the rack cabinet.
1. Press and hold the on/off button until the long beep ceases (approximately 3
seconds), and then disconnect the UPS.
2. Wait 60 seconds while the internal processor shuts down before you disconnect
the battery.
To replace the battery modules, complete the following steps:
1. Remove the UPS lower front bezel. Press the two side latches toward each
other to release the bezel, and pull the bezel away.
O
K
OK
1
0
0
%
6
m
i
n
2. Loosen the thumbscrew on the left battery retention bracket 1, slide the
bracket to the right 2, rotate the bracket out 3, and then remove it.
O
K
OK
1
0
0
%
6
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Chapter 5. Hardware maintenance information 49
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