20
A01-00055 Rev N
5.0 MAINTENANCE
STORAGE
A charged battery, disconnected from a UPM or load, can maintain ideal
voltage for approximately six months before recharge is necessary.
A discharged battery needs to be recharged within 72 hours of the
discharge to avoid permanent battery damage. Storing a UPM with the
battery connected can cause permanent battery damage and therefore,
the battery must always be disconnected when storing the UPS.
The UPM may be stored for extended periods in an environment that
does not subject the UPM to extremes of temperature or humidity.
When storing for extended periods, the battery should be charged every
six months. If the storage location is characterized by above 77℉
temperature, the battery should be recharged every two months. The
UPM does not need to be turned on for charging to occur – it only
needs to be plugged in with batteries connected. Batteries must be
disconnected when changing cycle is complete and UPM is returned to
storage.
NOTE:
This product is not designed for continuous use on batteries. UPM
should always be plugged in to AC mains voltage when not being
used in battery back-up mode to avoid damaging internal batteries,
resulting in the battery not operating correctly (i.e. overheating or
inability to retain a charge).
The UPM firmware in this unit provides an additional warning and
alarm to help prevent and detect this condition.
1.
Battery Connected Warning – helps prevent the UPM from being
stored with the battery connected. This will cause the display to
flash the pattern below and sound the audible alarm indicating to
disconnect the battery. This will occur when:
