Casio fx-9860G SD - Manual (Page 591)

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k Replacing Batteries
Precautions:
Incorrectly using batteries can cause them to burst or leak, possibly damaging the interior of
the calculator. Note the following precautions:
• 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 calculator for long periods.
• Never try to recharge the batteries
supplied with the calculator.
• 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 calculator immediately,
taking care to avoid letting the battery fluid come into direct contact with your skin.)
Keep batteries out of the reach of small children. If swallowed, consult with a physician
immediately.
u To replace the main power supply batteries
• Never remove the main power supply and the memory back up batteries from the calcula-
tor at the same time.
• Never turn on the calculator while the main power supply batteries are removed or not
loaded correctly. Doing so can cause memory data to be deleted and malfunction of the
calculator. If mishandling of batteries causes such problems, correctly load batteries and
then perform the RESET operation to resume normal operation.
• Be sure to replace all four batteries with new ones.
Turning off the calculator while editing an eActivity and then changing batteries can cause
the data you are editing to be deleted. Be sure to save the eActivity data before turning
off the calculator and changing batteries.
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Power Supply
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