Sharp OZ-640 - Manual (Page 91)

90
B. Battery Replacement
General guidelines
The Organizer uses the following type of battery:
There are some extremely important points to remember when
installing new batteries:
* Replace the two operating batteries at the same time with
new batteries of the same type.
Caution:
* Keep batteries out of the reach of children.
* Remove batteries from the unit when they become weak
or when the unit will not be used for a long period of time.
Leaving weak batteries in the unit may cause battery
leakage and damage from corrosion.
* Do not dispose of batteries by fire as they may explode.
Replacing the operating batteries
The Organizer detects two low battery levels which are warning
and fatal. When the batteries is in warning level, the
symbol
appears at the bottom of the display. In fatal level, the organizer
will turn off automatically without indication.
If the symbol still appears or nothing is shown, replace
both of the operating batteries immediately.
1. Turn off the Organizer.
2. Set the battery replacement switch on the bottom of the
Organizer to REPLACE BATTERIES (a red dot will appear).
3. Slide off the operating batteries cover.
4. Remove the old batteries by pulling the ribbon tab.