AT&T 7700 - Manual (Page 10)

Charging the Handset Battery Pack
The batteries need charging when:
• The phone beeps four times when you press P.
• The battery icon is empty on the handset screen.
• The phone does not respond when you pressP,
and no lights go on.
Place the handset face up or face down in the base so the
CHARGING light goes on. (If you have wall-mounted the base,
place the handset face down). The batteries will be fully charged
in 10 hours.
A fully charged battery maintains standby power for up to 7
days when the handset ringer is ON, and up to 21 days when the
ringer is OFF.
If it’s more convenient for you, you can leave the handset in the
base all the time. It is impossible to overcharge the battery. If
you get a low battery indicator even after 10 hours of charging,
the battery should be replaced.
CAUTION: To reduce the risk of fire or injury to
persons or damage to the telephone, read and follow
these instructions carefully.
• Use only Replacement Battery 4051.
• Do not dispose of the battery in a fire. The cell
might explode. Check with local codes for special
disposal instructions.
• Do not open or mutilate the battery. Released
electrolyte is corrosive and may cause damage to the
eyes or skin. It may be toxic if swallowed.
• Exercise care in handling batteries in order not to
short the battery with conducting materials such as
rings, bracelets, and keys. The battery or conductor
may overheat and cause harm.
• Charge the battery provided with or identified for
use with this product only in accordance with the
instructions and limitations specified in this manual.
• Observe proper polarity orientation betweenthe
battery and battery charger.
Replacing the Handset Battery Pack
1 Remove the battery case cover on the handset by
pressing on the indentations and sliding the cover
downward.
2 Lift out the old battery pack and unplug it from the
handset.
3 Hold the new battery pack and plug the connector
into the handset. Place the battery pack into the
case, so the wires rest above the battery pack.
4 Replace the cover by sliding it on its track up over
the battery case until it snaps firmly into place.
5 The new batteries must be charged before using the
phone. Place the handset face down or face up in the
base (face down only if wall mounted) and allow it
to charge for 10 hours. The telephone might operate
before that, but for best performance, let the handset
batteries charge fully.
B A T T E R I E S
Replacing the Handset Battery Pack
9