E
Battery Charger
DT-9721CHGE
User’s Guide
Be sure to read “Safety
Precautions” inside this
guide before trying to use
your Battery Charger.
After reading this guide,
keep it in a safe place for
future reference.
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Safety Precautions
Warning
Dropping and Damage
• Should you drop the Battery Charger and damage it, immediately unplug the
AC plug from the wall outlet and contact your original vendor or an
authorized CASIO service provider. Continued use creates the danger of fire
and electric shock.
Moisture
• Keep loose metal objects and containers filled with liquids away from the
Battery Charger.
Also, never connect the Battery Charger while it is wet. Water getting into
the Battery Charger creates the danger of fire and electric shock.
Supplied Lithium-ion Battery Pack
• If the battery pack does not achieve full charge after the normal charging
time has passed, stop charging. Continued charging creates the danger of
battery pack heat emission, explosion, and fire.
Caution
Location
• Do not locate the Battery Charger on a surface that is unstable or uneven.
Doing so creates the danger of the Battery Charger falling, which can cause
personal injury.
• Do not locate the Battery Charger in an area subject to large amounts of
humidity or dust. Doing so creates the danger of fire and electric shock.
Heavy Objects
• Never place heavy objects on top of the Battery Charger. Doing so creates
the danger of loss of balance and the objects falling, which can cause
personal injury.
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AC Power Supply
Warning
• Do not plug in the Battery Charger to a wall outlet with an AC voltage
other than the specified voltage. Also, do not plug in the Battery Charger to
a multi-plug power strip. Doing so creates the danger of fire and electric
shock.
• Avoid conditions that can cause damage or breaks in the power cord. Do not
place heavy objects on the power cord and keep it away from sources of
heat. Any of these conditions can damage the power cord, creating the
danger of fire and electric shock.
• Never modify, sharply bend, twist, or pull on the power cord. Doing so
creates the danger of fire and electric shock.
• Do not connect the Charger to a multi-plug power strip. Doing so creates the
danger of fire and electric shock.
• When using the Battery Charger, be sure to use the dedicated power cord
only. Use of other power cords creates the danger of fire and electric shock.
• Should the power cord become severely damaged (to the point that wires are
exposed or broken), contact your original vendor or an authorized CASIO
service provider about repair or replacement. Use of a damaged electrical
cord creates the danger of fire and electric shock.
Caution
• Keep the power cord away from stoves and other sources of extreme heat.
Heat can melt the covering of the power cord and create the danger of fire
and electric shock.
• Never pull on the power cord when unplugging it. Doing so can damage the
cord and create the danger of fire and electric shock. (Always hold the plug
when unplugging it from the wall outlet.)
• Never touch the plug while your hands are wet. Doing so can create the
danger of electric shock.
• Be sure to unplug the power cord from the wall outlet before moving.
Failure to do so can result in damage to the power cord caused by pulling on
it, which creates the danger of fire and electric shock.
• Be sure to unplug the power cord from the wall outlet before cleaning the
Battery Charger.
• Be sure to turn the power off and unplug the power cord after use.
• For safety reasons, unplug the power cord from the wall outlet when not
using for a long period of time.
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Safety Precautions
Maintenance
Caution
• At least once a year, unplug the Battery Charger from the wall outlet and
clean any dust that builds up between the prongs of the plug.
Dust built up between the prongs can lead to the danger of fire.
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GUIDELINES LAID DOWN BY FCC RULES FOR USE OF THIS UNIT IN THE U.S.A. (not
applicable to other areas).
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
NOTICE
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is encouraged to try to correct the interference
by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
FCC WARNING
Changes or modifications not expressly approved by the party responsible for compliance could void the
user’s authority to operate the equipment.
Proper connectors must be used for connection to host computer and/or peripherals in order to meet FCC
emission limits.
CASIO Europe GmbH
Bornbarch 10, D-22848
Norderstedt, Germany
Please keep all information for future reference.
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Using the Battery Charger (DT-9721CHGE)
The Battery Charger can be used to charge the battery pack (DT-9723LI).
1. Connect the power cable to the Battery
Charger, and then plug the cable into an
electrical outlet.
2. Attach the battery back by sliding in the
direction indicated by the arrow. The
CHARGE indicator lamp (orange) lights
after a few seconds and charging begins.
Charging is completed when the CHARGE
indicator lamp goes out.
• Charging normally takes about 3
hours(when recharging the battery pack
after it has been completely discharged).
• Charging time may vary depending on the ambient temperature and condition of
the battery pack.
• The CHARGE indicator lamp lights once when a battery pack has been attached
that has already been charged.
Important!
• Securely attach the battery pack to the Battery Charger.
• Charge the battery pack in a location that is free of vibrations.
• If the CHARGE indicator lamp does not light at all or does flash when a battery
pack has been attached, this indicates the possibility of a malfunction either in the
Battery Charger or battery pack. Please contact the store where you purchased
the product or an authorized CASIO service provider.
• Only use the power cable provided with the Battery Charger (included).
• The following power cables must be used according to safety standards in the
USA and Canada in particular. The power cable included with the Battery
Charger satisfies the following criteria.
For USA and Canada
Use only CSA/UL Certified power supply cord set. Polarized Type, Type SPT-2
or heavier minimum No. 18 AWG copper, rated 125 or 250V, minimum 1A,
minimum 6 ft (1.8m), maximum 10 ft (3m) long.
For other countries
Must comply with requirements set out by the Safety
Approval/Certification Organization in each country of use.
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Removing the Battery Pack
Slide the battery pack in the opposite direction from that when it was attached to
remove it from the Battery Charger.
Battery Charger (DT-9721CHGE) Specifications
1. Charging
Charging System: Constant voltage - Constant current
Charge Time: Approximately 3 hours until the LED goes out
2. Charging Indications
During Charging: The CHARGE indicator lamp in orange lights
At Completion of Charging: Approximately 90% charged when the LED goes out
Charging in full will require another 1 hour approximately after the LED went out
3. Dimensions and Weight
Dimensions: Approximately 56 × 44 × 107 mm
Weight: Approximately 140 g
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MEMO
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CASIO COMPUTER CO., LTD.
6-2, Hon-machi 1-chome
Shibuya-ku, Tokyo 151-8543, Japan
PN410385-001
Printed in Japan
MO0410-XXXX01A
Printed on recycled paper.
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