57
5.
UPS Maintenance
This section explains how to:
Care for the UPS and batteries
Replace Extended Battery Packs(EBPs)
Test new batteries
Recycle used batteries or UPS
UPS and Battery Care
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 25°C (77°F).
NOTE
The batteries in the UPS are rated for a 3~5 year service life.
The length of service life varies, depending on the frequency of
usage and ambient temperature. Batteries used beyond expected
service life will often have severely reduced runtimes. Replace
batteries at least every 5 years to keep units running at peak
efficiency.
Storing the UPS and Batteries
If you store the UPS for a long period, recharge the battery every 6
months by connecting the UPS to utility power. The internal batteries
charge to 80% capacity in less than 5 hours. However, we
recommends that the batteries charge for 48 hours after long-term
storage. If optional EBPs are installed, see the recharge times listed in
Table 21 on page 70. Check the battery recharge date on the
shipping carton label. If the date is expired and the batteries were
never recharged, do not use the UPS. Contact your service
representative.