AASTRA DT390 for BusinessPhone User Guide EN - Manual (Page 93)

C ORDLESS P HONE FOR B USINESS P HONE
93 1424-EN/LZT 103 091 Uen D 2010-02-12
16 Installation
This chapter describes the battery and chargers and other equipment for
the cordless phone.
16.1 Battery
Note: As an energy saving measure, disconnect the charger from the
main socket after charging.
16.1.1 Charging the Battery
The battery needs charging when the low battery level symbol, ,
appears in the phone display.
To charge the battery, place the phone in the desk charger, the desk
PDM charger, or the rack PDM charger. For more information, see Char-
gers on page 96.
• A steady orange light indicates that the battery is being charged.
• A steady green light indicates a fully charged battery. (A flashing
green indicator means incoming call or message.) In the phone
display, an icon appears, showing a filled battery.
• A steady red light indicates a low battery level. In the phone display,
an icon appears, showing an almost empty battery.
• An animated battery icon is shown in the display, indicating
charging by starting with its current charge level and ending with
the full charge.
Note: Only use the prescribed chargers for charging.
16.1.2 Replacing the Battery
If the standby time for the cordless phone becomes too low, replace the
battery with a new one. Contact the system administrator or your certi-
fied Aastra Sales partner for information on new batteries.
The battery is easy to replace. It is attached inside the battery lid and is
connected to the cordless phone in such a way as to avoid misinsertion.
Attach the battery as described in figure 10 on page 94.