12
Installation
•
The battery cannot be overcharged.
•
If the backup battery has been discharged during a power failure, the unit will not
work. If required, you can connect a standard telephone on the same line. See
page 91.
BATTERY Indicator:
•
The BATTERY indicator lights while
the battery is being charged. (This is
normal.)
•
During a power failure (or if the AC
adaptor is disconnected), the
BATTERY indicator shows the
battery strength:
Full to Medium:
The indicator lights.
Low:
The indicator flashes.
No power:
The indicator light is off.
Installing the Backup Battery in the Base Unit
A rechargeable Ni-Cd battery works as emergency power during a power
failure. The fully charged backup battery provides the base unit with a
minimum of 20 minutes operation. The battery is charged in the base unit
while the AC adaptor is connected (p. 13). It takes about 10 hours to
charge fully.
1
Open the battery cover.
2
Install the backup battery
in the battery compartment.
Close the battery cover.
BATTERY Indicator