Nortel Networks 6140 - Manual (Page 105)

105
Battery packs
Battery packs
This section provides information on the battery packs for the WLAN Handset 6120
and 6140.
The interchangeable Lithium Ion battery with standard capacity battery pack for the
WLAN Handset 6120 and 6140 must be recharged periodically. Interchangeable
Lithium Ion battery with standard capacity Standby time is when the handset is turned
on, but not in an active call.
— Standard Battery Pack capacity:
• for moderate call usage
• requires up to two hours to fully charge
— Extended Battery Pack capacity:
• for intermediate call usage
• requires up to three hours to fully charge
— Ultra-Extended Battery Pack capacity:
• for heavy call usage
• requires up to four hours to fully charge
Recommended battery replacement interval is every 12 - 13 months under normal
usage duty cycle.
Batteries deteriorate continuously at various rates from the time they are
manufactured. Storage temperature is an important deterioration factor for all types of
batteries. The cooler a battery is kept, the slower it will deteriorate, as long as its
temperature remains above freezing. Damaging changes can occur in some types of
batteries below freezing, so generally batteries should not be stored in a freezer or
otherwise in freezing temperatures.
Low battery indicators
The Battery Pack icon on the status line of the handset display provides a visual
indication of the amount of charge that remains in the Battery Pack. When the icon
shows empty, if the handset is in standby mode, you hear a brief, modulated-ring
signal, and the Battery Low message appears. The handset cannot be used until it is
charged. If you are in a call you hear soft beeps, first slow and then fast, until the
handset is unusable. When you first hear the beeps, you have two minutes to end the
call or change the Battery Pack.