Appendix B Power Supply - Casio fx-9750G Appendix

Appendix B Power Supply

This unit is powered by four AAA-size (LR03 (AM4) or R03 (UM-4)) batteries. In
addition, it uses a single CR2032 lithium battery as a back up power supply for the
memory.
If the following message appears on the display, immediately stop using the calcula-
tor and replace batteries.
If you try to continue using the calculator, it will automatically switch power off, in
order to protect memory contents. You will not be able to switch power back on until
you replace batteries.
Be sure to replace the main batteries at least once every two years, no matter how
much you use the calculator during that time.
k k k k k Replacing Batteries
Precautions:
Incorrectly using batteries can cause them to burst or leak, possibly damaging the
interior of the unit. Note the following precautions:
Warning!
If you remove both the main power supply and the memory back up batteries at the
same time, all memory contents will be erased. If you do remove both batteries,
correctly reload them and then perform the reset operation.
• Be sure that the positive (+) and negative (–) poles of each battery are facing in
the proper directions.
• Never mix batteries of different types.
• Never mix old batteries and new ones.
• Never leave dead batteries in the battery
compartment.
• Remove the batteries if you do not plan to
use the unit for long periods.
• Never try to recharge the batteries sup-
plied with the unit.
• Do not expose batteries to direct heat, let
them become shorted, or try to take them
apart.
(Should a battery leak, clean out the battery compartment of the unit immedi-
ately, taking care to avoid letting the battery fluid come into direct contact with
your skin.)
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