To Replace The Batteries - Casio fx-250HC User Manual

• The batteries that come in the calculator when you pur-
chase it are for testing only. They may not provide full
service life.
• All data stored in memory is lost when you replace the
batteries. Be sure to write down important data before re-
placing the batteries.
• Always be sure to load the batteries so their positive ( )
and negative ( ) ends are facing correctly.
• Never mix batteries of different types.
• Never mix new batteries with old ones.
• Never try to charge batteries, take them apart, or allow
them to become shorted. Keep batteries away from direct
flame and heat.
• Keep batteries out of the reach of small children. If
swallowed, consult with your physician immediately.

To replace the batteries

i
1. Press
2. Remove the screws that hold the
back cover in place, and then re-
move the cover.
3. Remove the old batteries.
4. Install two new batteries with the
positive ( ) and negative ( )
ends facing correctly.
5. Replace the back cover and
secure it in place with the screws.
t
6. Press
to turn power off.
to turn power on.
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Screws
Batteries
Screws