Casio CASSIOPEIA User Manual

Though the built-in battery pack is rechargeable, it requires periodic replacement after
it is used for a long time. If the message “Internal Battery Warning
The internal battery is low. Continued use may result in loss of ability to store
data. Charge the battery as soon as possible.” appears on the display when you turn
on power or while you are using the CASSIOPEIA soon after you correctly charge the
battery, it probably means that the built-in battery pack has reached the end of its
normal service life.
Do not remove the built-in battery pack yourself. Take the unit to your original dealer
or an Authorized CASIO Service Provider to have it replaced. Note that you will be
charged for battery pack replacement.
• The normal rule of thumb for battery replacement is about once every two years

(about 500 charges).

Important 
• Never try to replace the battery yourself! Doing so creates the risk of fire, personal

injury, or other serious problems.

Be sure to remove the built-in battery pack from the CASSIOPEIA and dispose of it
separately.

Important 
• Perform the following steps to remove the built-in battery pack from your

CASSIOPEIA only if you plan to dispose of your CASSIOPEIA and not use it any
longer. Otherwise, you should never try to remove the built-in battery pack.

1. Remove the screws securing the battery pack compartment cover in place, and

remove the cover.