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MEMORY BACKUP BATTERY
A 3V lithium battery has already been installed in
your phone to act as a backup when the AA-size
batteries lose their power. The 3V lithium battery
ensures that the numbers you’ve stored in
memory will be retained when the AA-size
batteries are removed or aren’t working properly.
You’ll know you need to replace the 3V lithium
backup battery if memory backup fails when you
remove the AA-size batteries. To replace the 3V
lithium battery:
1. Disconnect the telephone line cord from the
LINE jack on the back of the phone.
2. Remove the plastic cover with a screwdriver to
expose the black battery holder.
3. Use the screwdriver again to pop up either end
of the black battery holder out of the cabinet.
4. Slide the battery holder out of the
compartment and remove the battery from the
black holder.
5. Insert new battery and snap into the black
holder making sure you’ve matched the + and
– polarities on the battery and the holder.
6. Replace the battery holder and make sure that
the keyhole on the holder lines up with the tab
on the cabinet.
7. Replace the plastic cover and plug the
telephone line cord back into the phone.