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When the main battery low condition occurs, the main battery can
continue to supply power for about 10 ~ 30 minutes, however the unit
may reach the system power cutoff point and automatically turn itself off.
Meanwhile the unit continues to back-up the data contents in RTC and
RAM, but it cannot be powered up until the batteries have been recharged
or replaced.
Lithium Backup Battery
When the Lithium backup battery doesn't have
enough capacity to back up the system, the
message as right will be shown on LCD when
the unit is powered on. In this situation you
should upload your data from the PDT immediately and replace a new
Lithium battery.
2.3 Battery Replacement
Main Battery
1. Make sure the unit is turned off.
2. Turn over the unit. Slide tab from right to left (see illustrations in next
page).
3. Slide the main battery pack from battery compartment.
4. Insert the new main battery packet:
! WARNING !
LITHIUM BATTERY
LOW