Casio DT-X100 Service Manual page 9

1-3. Precautions when handling and using the product
Charging, Feeding, Batteries
 Use HA-F20BAT or HA-F21LBAT as the rechargeable battery pack.
 A secondary battery is used as a backup.
Do not replace the main battery when the backup battery is not yet fully charged. Removing the main
battery while the backup battery is used-up may cause deletion of data.
 The rechargeable battery pack may suffer from low voltage due to shipping inspection and natural
discharge. Make sure to charge the rechargeable battery pack before using the product.
 Life of the rechargeable battery pack will be shortened as it is repeatedly charged and discharged.
Replace the rechargeable battery pack when continuous operating time becomes extremely shorter even
if it is fully charged.
 Charge the main battery within the temperature from 0 to 40 °C.
Failure to do so does not charge the battery as the charging protection function starts working.
 Memory (RAM) can be backed for about 10 minutes without the main battery when the backup battery is
fully charged.
 Make sure to load the rechargeable battery pack when charging.
CAUTION
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.
DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS.
Other
 This product uses sensitive wireless communication. In order to perform good communication, do not use
devices that emit radio waves (such as a cell phone) near the product during the communication. If such
devices must be used, keep them away from the product (ex. keep a cell phone away from the product
more than 30 cm.)
1-4. Storage
 Remove the battery when storing the product for a long period of time.
 Avoid storing the product in the environment with higher temperature (more than 60 °C) such as inside a car.
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