Panasonic KX-TGM420AZ Operating Instructions Manual page 15

Base unit battery status when a power failure occurs
Item
*1
When the base unit is running on battery power, "
of the base unit. If there is other information that can be displayed, such as the number of
answering system messages, the other information is displayed.
*2 When the base unit is running on battery power and the remaining battery power is too low,
" " flashes and the base unit beeps. Additionally, the base unit's message indicator
flashes.
Panasonic Ni-MH battery performance when operating on
backup battery power
Operation
In continuous use
Not in use (standby)
Note:
R Battery performance depends on the type of batteries.
R Actual battery performance depends on usage and ambient environment.
R If the base unit is running on battery power, the brightness of the message counter on the
base unit is reduced to save battery power.
R When the base unit is running on battery power, the maximum ringer volume of the base unit
will be reduced.
R If your phone service provider requires additional devices in order to make and receive calls,
such as a modem, you may still not be able to make and receive calls even if the base unit's
backup power feature is functioning.
Base unit battery installation (for replacement)
Important:
R The following AAA (R03) size batteries can be used with the base unit:
– Rechargeable Ni-MH batteries
– Standard (non-rechargeable) alkaline batteries
R Do NOT use manganese batteries.
R Confirm correct polarities (
*1 The base unit can fully charge Ni-MH batteries in about 15 hours.
*2 If the rechargeable batteries become depleted during a power failure, you can insert alkaline
batteries into the base unit. Remove the alkaline batteries when power is restored.
1
Disconnect the telephone line cord (A).
2
Open the battery cover (B).
0605_TGM42xAZ OI_ver002.pdf 15
Battery status
Power backup mode is on.
*2
Battery power is low.
Operating time
3 hours max.
4 hours max.
*1
, ).
Getting Started
*1
" is displayed on the message counter
*2
15
5/6/2016 5:01:40 PM