
Chapter 6 Preparing handset for use 95
Digital Mobility System Installation and Configuration Guide
Charging battery
When charging the battery for the first time, it is necessary to leave the handset in the charger for
14 - 16 hours before the battery is fully charged and the handset ready for use.
Note: During normal operation, it takes approximately 3.5 hours to charge the handset from fully
discharged to its full capacity.
• Place the handset in the charger.
For correct charging, be sure the room temperature is between 0°C and 25°C (32°F and 77°F).
Do not place the handset in direct sunlight. The battery has a built-in heat sensor which will
stop charging if the battery temperature is too high.
If the handset is turned off when placed in charger, only the LED indicates the charging. When
handset is turned off, the LED flashes at a low frequency while charging and lights constantly
when the charging is finished. There will be no reaction for incoming calls.
If the handset is turned on when charging, the display shows the charging status. The display
goes back to normal mode when fully charged. It will not vibrate. Auto-answer is inactive. The
handset reacts normally for incoming calls.
It is necessary to recharge the battery when the display shows BATTERY LOW, or if the handset
cannot be turned on. When the battery is fully discharged, up to 10 minutes may pass before
charging begins (display lights up). When the charger begins the charging, status is shown on the
display if the handset is turned on.
Battery disposal
Warning: Nickel metal hydride batteries must be disposed of in the correct manner. Do not
dispose of the batteries in office or household waste.
Nickel metal hydride batteries are recyclable. You can help preserve the environment by returning
your unwanted batteries to your nearest recycling center for recycling or proper disposal.
Contact your system administrator for more information about battery disposal and recycling
centers in your local area.
DM_InstallationGuide.book Page 95 Monday, September 18, 2006 6:58 AM
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