16
Uninterruptible Power Supply Instructions
Storing New Units
UPS units shipped from the factory since the start of 2006 have a
clear Mylar battery pull tab protruding from the side of the unit.
This tab should be left in place until the UPS is deployed into
service. Removing the tab energizes the UPS circuit and causes
the battery to drain stored energy. Units with a pull tab may be
stored up to four months before they require a recharge or
deployed into service.
Storing Units Removed From Service
Units that have been removed from service should be recharged
within two weeks from their removal date. Typically, these units
will be very low in charge for the following reasons:
• Units may have been pulled out of service after they
completed a discharge and were not allowed to recharge.
• Even units that are recharged in their installation will lose
their charge after several days. This is the case when its red
LED remains on after removal from the lift truck. This
condition indicates that the UPS is available to supply power,
but there is no load connected to it. this state causes the
battery to become discharged within several days.
Charging/Shutting Down the UPS
An optional charger/shutdown kit (P/N 203-727-001) is
available from Intermec and can be used to charge freestanding
UPS (those that are not installed). Included is a cable that
functions as a means to shut down the UPS into a sleep mode
which prolongs the length of time the unit can be stored without
recharging. Units that have been properly charged and shut down
can be stored up to three months without further maintenance.
After that time, a recharge will be necessary to maintain the
integrity of the battery.
Another means of extending the storage time of the battery is to
allow it to be fully charged in the unit while installed (or outside
of the installation by using the optional charger) and then remove
the battery from the UPS unit (see
“Removing/Replacing the
Battery” on page 17
). If the unit had only been used for a week
or so, the battery will be able to be stored for up to four months
after a full charge. If the usage exceeds that, its shelf life will be
about three months before another recharge is required.
