AT&T 900 MHz - Manual (Page 46)

Replace the Handset Battery Pack
1 Remove the battery compartment cover on the handset by
pressing on the indentation and sliding the cover downward.
2 Lift out the old battery pack.
3 Hold the new battery pack and plug the connector into the
handset. Place the battery pack into the compartment.
4 Replace the cover by sliding it on its track up over the battery
case until it snaps firmly into place.
5 The new battery pack must be charged before using the
phone. Place the handset face-up or face-down in the base and
allow it to charge for at least 12 hours. The telephone might
operate in as little as 10 minutes, but for best performance, let the
battery pack charge fully.
NOTE: The handset cannot be charged in the face-up position if the
belt clip is attached.
BATTERIES
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