Panasonic KX-TGP600 Operating Instructions Manual page 106

Appendix
Problem
While charging the
battery, the LED
indicator blinks
rapidly, but the
handset does not
beep.
While charging the
battery, the LED
indicator blinks
rapidly and the
handset beeps rapidly.
I cannot remember
the PIN number.
The "Delete All"
operation to delete all
phonebook entries is
not functioning.
106
Possible Cause
The temperature of the battery
being charged is outside of
normal limits.
The battery is not charging
correctly due to an electrical
failure.
A wrong type of battery such as
Alkaline or Manganese was
inserted.
—
Batteries are drained, which
prevents the operation from
being completed.
Solution
Confirm that the area where the
handset is being charged is
between 5 °C (41 °F) and 40 °C
(104 °F), and wait for the battery's
temperature to drop.
Unplug the AC adaptor from the AC
outlet, remove the battery from the
handset, and contact your phone
system dealer/service provider.
Use only the rechargeable Ni-MH
batteries noted on Page 11, 12.
Contact your phone system dealer/
service provider.
Charge the battery fully, and then
try again.
For details, see "Charging the
Batteries" on Page 82.