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Battery Maintenance
Maintaining the Monitor
3-9
Identifying
Battery
Strength
You can determine the monitor’s battery strength by the color of the battery icon, or by the
number of illuminated bars on the battery icon. The following table describes the battery icon
behavior:
• If the battery operating time is less than 30 minutes, the battery icon flashes. A low
priority audio alarm sounds (1 beep every 4 seconds).
• When the battery is empty, a "Low Battery" INOP message displays in the Message
frame and the audible alarm sounds. Pressing any front panel button clears the INOP
and silences the audible alarm. The battery icon continues to flash until the monitor is
powered down or automatically switches off.
If the new battery is partly or fully charged, the monitor starts operating.
Charging
the Battery
A complete battery recharge (>90%) requires 8 hours in standby mode or 14 hours in
operational mode.
To charge the battery:
Number of Bars
Illuminated
Color Used Behavior
3, 4, or 5 Green Constant display
2 Yellow Constant display
1 Red Constant display
0 Red Battery icon flashes
and message displays
Step Action
1 Connect the monitor to the AC power source using the proper power cord.
2 Verify that the AC Input Indicator LED is lit.
3 Charge the battery for at least 8 hours. The battery may require a full discharge/
charge cycle to restore it to its normal capacity.
4 To check for a full charge, perform the procedure described in “Battery
Performance Test”on page 4-22.