Nortel Networks 413X - Manual (Page 10)

10
Charging battery
When charging the battery for the first
time, it is necessary to leave the
handset in the charger for 14-16
hours for the battery to be fully
charged.
During normal operation, it takes
approximately 3.5 hours to charge the
handset from fully discharged to its
full capacity.
• Place the handset in the charger.
For correct charging, be sure the
room temperature is between 0°C
and 25°C. Do not place the
handset in direct sunlight. The
battery has a built-in heat sensor
which will stop charging if the
battery temperature is too high.