Exerpeutic 900XL Owner's Manual page 21

HOW TO INSTALL THE BATTERIES:
1. Remove the battery cover at the rear of computer.
2. Place two "SIZE-AA" batteries into the battery housing.
3. Insure batteries are correctly positioned and battery springs are in proper
contact with batteries.
4. Re-install the battery cover.
5. If the display is illegible or only partial legible, remove batteries and wait 15
seconds before reinstalling.
CONSOLE
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