B A T T E R I E S

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.

Replacing the Handset Battery Pack

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

1Remove the battery case cover on the handset by pressing on the indentations and sliding the cover downward.

2Lift out the old battery pack and unplug it from the handset.

3Hold 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.

4Replace the cover by sliding it on its track up over the battery case until it snaps firmly into place.

5The 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.

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AT&T 7700 user manual T T E R I E S, Charging the Handset Battery Pack, Replacing the Handset Battery Pack