Maintenance; Maintenance Of Batteries; Battery Warnings; Charge The Battery - Aastra DT4x3 DECT Telephones User Manual

User Manual
Aastra DT4x3 DECT Telephones
13

Maintenance

13.1 Maintenance of Batteries

13.1.1 Battery Warnings

The "Low battery" icon is displayed when the battery has 10% or less
remaining capacity left. In addition; a warning signal sounds every minute,
the LED flashing orange, and the dialog window "Battery low. Charge now."
appears.
The "Empty battery" icon is flashing when the battery has 5% or less
remaining capacity left. In addition; a warning signal sounds every second,
the LED flashing red, and the dialog window "Battery empty. Shutting down."
appears.
During a call, only the corresponding battery warning signal will notify the user. The warning
signal cannot be silenced during a call. When not in call, the warning signal can be silenced
by pressing

13.1.2 Charge the Battery

Place the handset in the desktop charger or in the rack charger. The battery is being charged
when the LED on the handset is steady orange. When the battery is fully charged the LED is
green.
An animated battery icon
with its current charge and ending with the full charge. A filled battery icon
fully charged battery.
Note: Only use the prescribed chargers for charging.

13.1.3 Charge Spare Batteries

Spare batteries can be charged with a separate battery pack charger. It can charge six
batteries at the same time.
IMPORTANT:

13.1.4 Replace the Battery

If the standby time for the handset becomes too low, the battery should be replaced by a
new one. Please contact your system administrator or your supplier, for information about
new batteries. Attach the battery as described in
the battery lid and is connected to the handset in such a way that no misalignment of the
contact is possible.
NOTE: Use the battery pack opener to untight the screws on the intrinsically safe handset.
31 October 2013 / Ver. C
or .
is also shown in the display indicating charging by starting
It is not permitted to charge intrinsically safe batteries using the battery
pack charger.
figure 6 on page 75. It is attached inside
TD 92789EN
indicates a
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