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Powerware
®
9120 User's Guide S 05147426 A Uncontrolled Copy
C H A P T E R 6
UPS MAINTENANCE
This section explains how to:
S Care for the UPS and batteries
S Replace the batteries
S Recycle used batteries
UPS and Battery Care
For the best preventive maintenance, keep the area around the UPS
clean and dustĆfree. If the atmosphere is very dusty, clean the outside of
the system with a vacuum cleaner.
For full battery life, keep the UPS at an ambient temperature of
25°C (77°F).
Storing the UPS and Batteries
If you store the UPS for a long period, recharge the battery every
10 months by connecting the UPS to a power source. The batteries
charge to 90% capacity in approximately 4 hours. However, it is
recommended that the batteries charge for 6 to 24 hours after long-term
storage.
Replacing Batteries
With the hotĆswappable battery feature, UPS batteries can be replaced
easily without turning the UPS off or disconnecting the load.
If you prefer to remove input power to change the battery, press and
hold the
button until the long beep ceases (approximately five
seconds). Then unplug or remove utility power from the UPS.
Consider all warnings, cautions, and notes before replacing batteries.