4
Getting started
Battery installation and charging
Once you have installed the battery, the screen indicates the battery status 
(see the following table). For best performance, keep the handset in the 
telephone base or charger when not in use. The battery is fully charged 
after 10 hours of continuous charging. See the table in the Technical 
specifications section on page 47 for battery operating times.
Battery indicators Battery status Action
The screen is blank, or 
shows Place in charger  
and   (flashing).
Battery has no or 
very little charge. The 
handset cannot be used.
Charge without interruption 
(at least 30 minutes).
The screen shows  
Low battery and  
(flashing).
Battery has enough 
charge to be used for a 
short time.
Charge without interruption 
(at least 30 minutes).
The screen shows  
HANDSET X.
Battery is charged. To keep the battery charged, place it in the 
telephone base or charger when not in use.
Step 1
Plug the battery 
connector securely 
into the socket inside 
the handset battery 
compartment. Insert the 
supplied battery with 
the label THIS SIDE UP 
facing up, as indicated.
Step 2
Align the cover flat against 
the battery compartment, 
then slide it upwards until 
it clicks into place.
Step 3
Charge the handset by placing it face forward in the 
telephone base or charger. The CHARGE light on the 
top of the handset is on during charging.
IMPORTANT INFORMATION
1.  Use only the supplied rechargeable battery or 
replacement battery (model BT183342). To order, visit  
our website at www.telephones.att.com or call 
1 (800) 222-3111. In Canada, dial 
 
1 (866) 288-4268. For more detailed instructions, 
refer to the online Complete user’s manual at  
www.telephones.att.com/manuals.
2.  If you do not use the handset for a long time, disconnect 
and remove the battery to prevent possible leakage.
CHARGE light