Replacing The Memory Backup Battery - Sharp EL-9650 Operation Manual

APPENDIX
4. Replace all four batteries. Be sure to insert the batteries as shown in the illustration.
5. Replace the battery compartment cover. The following message appears.
If you do not see the message, repeat steps 2 to 5.
6. Press ˚.
CAUTION
Do not press ¬. This will clear all the data.
7. If the display becomes hard to see, adjust the display contrast.
(Press Ï q and - (lighter) or + (darker) until the contrast is set
correctly.)

(3) Replacing the memory backup battery

Replace the backup battery every 5 years as follows:
* If you do not change the backup battery every 5 years, you risk losing all of the stored memory.
1. Open the battery compartment cover following steps 1, 2, and 3 of the operating
battery replacement procedure.
2. Take off the memory backup cover label.
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