Ups Maintenance; Ups And Battery Care; Storing The Ups And Batteries - Powerware 9155 User Manual

Chapter 12

UPS and Battery Care

Powerware 9155 UPS (8–15 kVA) User's Guide
®

UPS Maintenance

This section explains how to:
Care for the UPS and batteries
Recycle used batteries
Use the Maintenance Bypass switch
For the best preventive maintenance, keep the area around the UPS
clean and dust-free. 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
77°F (25°C).

Storing the UPS and Batteries

When storing the UPS and optional cabinets, the following requirements
should be met:
Verify that the battery circuit breaker is in the OFF position.
Avoid temperature and humidity extremes. To maximize battery life,
the recommended storage temperature is 59°F (15°C) to 77°F (25°C).
If you store the UPS for a long period, recharge the batteries every
10 months by applying utility power. The batteries charge to 80%
capacity in approximately 3 hours. However, it is recommended that
the batteries charge for 48 hours after long-term storage.
Check the battery recharge date on the shipping carton label. If the
date has expired and the batteries were never recharged, do not use
the UPS. Contact your service representative.
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