Polycom SpectraLink 8440, User Manual, Page: 95 / 116

Charging Your Handset
April, 2011 | 1725-36720-001_RevB 85
The length of time to charge is dependent on the method used—Quad Charger is the
fastest. If you are using the handset while it is in the charger, charging time will be
prolonged.
WARNING: THERE IS A RISK OF EXPLOSION IF YOU REPLACE THE BATTERY PACK WITH AN
INCORRECT TYPE. ONLY USE POLYCOM MODEL RS657 OR RS658 BATTERY PACKS WITH
SPECTRALINK 8400 SERIES WIRELESS TELEPHONES. DISPOSE OF USED BATTERIES
ACCORDING TO THE INSTRUCTIONS.
Indications of Low Battery
Periodically, you will have to recharge the Battery Pack. The Battery Pack icon on the handset display’s
status row indicates the amount of charge remaining.
The handset will sound warning tones and display the Battery Low message when there are fewer than
two minutes of talk time remaining. When the handset is in Standby mode, the message Battery Low
and a series of chirps indicate a critically low Battery Pack charge. The handset will not work until the
Battery Pack is charged.
All batteries can cause property damage and/or bodily injury, such as burns, if a
conductive material such as jewelry, keys, or beaded chains touches exposed terminals.
The conductive material may complete an electrical circuit (short circuit) and become
quite hot. Exercise care in handling any charged battery, particularly when placing it inside
a pocket, purse, or other container with metal objects.
WARNING– The battery used in this device may present a risk of fire or chemical burn if
mistreated. Do not disassemble, heat above 45°C, or incinerate. Replace battery with
Polycom model RS657 or RS658 only. Use of another battery may present a risk of fire or
explosion.