User's Manual

User Manual Mobile Computer MC 9090
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Page 40
Charging the Battery in the Mobile Computer
Care must be taken that the devices to be charged are inserted into the charging station in the direction of the arrow.
The Mobile Computer starts the charging process automatically. The yellow charging LED in the LED display bar lights up
to indicate the charging status. Information on the charging displays can be found in Chapter 4.3.4 "Charging the Battery"
under "LED Status".
Charging the Backup-Battery
The Mobile Computer has an integrated backup battery in addition to the main battery.
The backup battery is automatically recharged by the battery, irrespective of whether the Mobile Computer is in operation or
in standby mode. The backup battery retains the data in memory for at least 30 minutes if the Mobile Computer’s battery
has been removed or completely discharged. If the Mobile Computer is being used for the first time or if it had been
completely discharged, it will take about 15 hours to recharge the backup battery completely. Do not remove the battery
from the Mobile Computer until after 15 hours to ensure that the backup battery has been completely recharged. If the
battery is taken out of the Mobile Computer or if it was completely discharged, the backup battery will become discharged
again in just a few hours.
When the main battery reaches a very low battery state, the combination of main battery and backup battery retains data in
memory for at least 36 hours.