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Chapter 10 UPS maintenance
Lenovo 8 kVA and 11 kVA Extended Battery Module
The below table details how many batteries are to be replaced for any of the single or three
phase 8 kVA or 11 kVA UPS units.
Number of EBMs installed
Base UPS shipped with one EBM
1
2
3
4
Attention! Once batteries are replaced, it is important to run a charge cycle of 48 hours to ensure the
capacity and runtime is synchronized. Two battery tests are performed during that portion
of the ABM cycle, three measurements are performed and will ensure there are no bad
cells in the battery string.
The battery algorithm needs a known starting point for ABM functionality, battery test and
the estimated runtime to be reasonable. Charging the batteries for 48 hours ensures those
functions are set correctly and advised for any start-up to ensure the batteries are good
and the timers are setup correctly.
Run a manual battery test and then let the batteries charge for 48 hours. See
Display functions
manually start a battery test.
During the 48 hour charge cycle the UPS is not to protect any load!
120
Number of batteries to be
replaced per unit
under
Control
/
Start battery test
How many batteries are to
2
2
2
2
2
for additional information on how to
6U Rack or Tower UPS RT8kVA and RT11kVA IUOMG
be ordered
2
4
6
8
10
Chapter 3
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