6 UPS Maintenance
0T This section explains how to:
0TCare for the UPS and batteries
0TReplace Extended Battery Packs(EBPs)
0TTest new batteries
0TRecycle used batteries or UPS
UPS and Battery Care
0TFor 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
0TIf 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 48. 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.0T
Replacing Batteries
NOTE DO NOT DISCONNECT the batteries while the UPS is in Battery mode.0T。
0TThe EBP can be replaced when UPS is ON， but be aware that if the utility fails at that
time , the load of the UPS may NOT be protected.
0TIf you prefer to remove input power to change the batteries, see “UPS Turn on and
Turn off” on page 33.
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