Casio DT-300M60E - Manual (Page 11)

E-13
Battery Replacement
Power Supply
Operating the Handheld Terminal requires two AA (LR6) alkaline batteries.
Replace the AA (LR6) alkaline batteries as soon as the battery display on the LCD screen
shows that the battery is empty (
).
[Warning]
■ Make a Backup of Important Data
• The Handheld Terminal is equipped with an internal backup
rechargeable battery. This battery is used as a backup power supply
and cannot be removed. If the main batteries are removed while the
backup battery is not charged, will cause data to be lost or degraded.
Lost data cannot be recovered, so be sure to make a backup of
important data, use the Bridge Satellite Cradle (sold separately) to
backup data to your personal computer.
Important! • Use only AA alkaline batteries.
• The backup battery (backup power supply) cannot be removed.
• The backup battery (backup power supply) will provide back up power
for approximately 10 days while the main batteries ( two AA alkaline
batteries) are not installed.
• The backup battery (backup power supply) will be fully charged
approximately four days after the main batteries have been set. The
backup battery (backup power supply) will be charged for
approximately two days to back up data after the main batteries have
been set for 16 hours.