Sharp EL-9900 operation manual Appendix, Replacing Batteries, Handling

Appendix

1. Replacing Batteries

The calculator uses two different kinds of batteries: manganese (AAA) for unit operation, and lithium (CR2032) for memory backup.

Compatible battery types

Type (use)	Model	Quantity
Manganese battery	AAA	4
(for unit operation)
Lithium battery	CR2032	1
(for memory backup)

*To prevent loss of stored data, DO NOT remove both the unit operation and memory backup batteries at the same time.

Precautions for	• Fluid from a leaking battery accidentally entering an eye could
handling	result in serious injury. Should this occur, wash with clean water
batteries	and immediately consult a doctor.
	• Should fluid from a leaking battery come into contact with your
	skin or clothes, immediately wash with clean water.
	• If the product is not to be used for some time, to avoid damage
	to the unit from leaking batteries, remove them and store in a
	safe place.
	• Do not leave exhausted batteries inside the product.
	• Do not fit partially used batteries, and be sure not to mix
	different batteries types.
	• Keep batteries out of the reach of children.
	• Do not allow batteries to become completely exhausted; doing
	so may cause the batteries to leak, and may damage the
	calculator’s hardware.
	• Do not throw batteries into a fire or water, as this may cause
	them to explode.

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