Battery Pack Replacement - HP -25 Owner's Handbook Manual

Battery Pack Replacement
If it becomes necessary to replace the battery pack, use only
another Hewlett-Packard battery pack like the one shipped
with your calculator.
CAUTION
Use of any batteries other than the Hewlett-Packard
battery pack may result in damage to your calculator.
To replace the battery pack, use the following procedure:
1. Set the -calculator ON-
OFF switch to OFF and
disconnect the battery
charger/ac adapter from
the calculator.
2. Press down on the thumb-
set at the rear of the calcu-
lator and slide the battery
pack in the direction of
the arrow.
3. When the key on the battery
pack becomes visible,
lever that end of the pack
up and permit the battery
pack to fall into the palm of
your hand.
4. Insert the new battery pack
in the direction of the
arrow. Slant the leading
edge of the pack into the
edge of the doorway.
5. Snap the battery pack into
place by pressing it gently.