Panasonic KX-TD816NZ - Manual (Page 171)

5.2 Before Operating the DECT Portable Station
DECT Portable Station
171
Battery Charge
You need to charge the battery before initial use and when the battery strength becomes low. When
" " flashes or beep tones sound every five seconds during a conversation or " BATTERY EMPTY "
is displayed, recharge the battery or replace with a fully charged optional spare battery. If not, the call
will be automatically disconnected in three minutes.
Standard Battery Life
If your Panasonic battery is fully charged [provided 25°C]:
While in use (Talk mode) Up to about 10 hours
While not in use (Stand-by mode) Up to about 100 hours
Shows the strength of the receiving
radio signal from the Cell Station (CS).
Strong
Weak
[Display: NO SERVICE ]
Out of range.
Move closer to the CS.
Shows the strength of the battery.
Fully charged.
Low
Medium
The battery needs to
be charged. The call
will be disconnected
within 3 minute after
a beep tone sounds.
(Flashing)
(Flashing)
(Radio Signal Strength) (Battery Strength)
(Off-hook status)
(Function mode) (Directory or Programming mode)
(Message Waiting indicator)
Someone is waiting for your call.