Nortel Networks 4065R - Manual (Page 12)

Setting up the handset
12
• To maintain optimum operating time, discharge the batteries from
time to time by leaving the handset off the charger and switched on,
until it switches itself off. Do not use any other method to discharge
the batteries.
• Extreme temperatures influence the charging capability of the
batteries.
Charging and operating times
• Empty batteries require approximately five hours to fully charge.
• When batteries are fully charged, the handset has approximately 8
hours of talk time or approximately 100 hours of standby time.
Charge display
The handset display screen shows the battery charge status. When the
battery capacity is almost exhausted, the battery symbol flashes in the
display. If the battery warning tone is switched on, the battery warning
tone sounds, see “Configuring Attention Tones” on page 65.
If you are
making a call when this occurs, approximately three to five minutes of talk
time remains. If you are not making a call and the handset is not in the
charging station,
Battery empty appears in the display. You cannot make
a telephone call while this message is displayed.
Note: Batteries with an unknown charging status fully charge in
approximately 14 hours.
See Table 1 for battery charge display definitions.
Note: When the battery is replaced, the charge level is not correctly
displayed until a whole charge and discharge cycle completes.
Table 1: Battery charge display
80 - 100 % charged
60 - 80 % charged
40 - 60 % charged
20 - 40 % charged
0 - 20 % charged
(frame flashes) batteries are empty: alert tone has been given.