Battery Handling Information; Using A Memory Card - Casio C781 User Manual

3. To remove the wall charger, unplug the USB
data cable from the phone' s charging/data
jack.
• When you charge the battery with the handset
powered off, you will see a charging status
screen. After charging is completed, the Charge
Complete message appears and you cannot
operate the phone until it is powered on. To turn
your phone on, press and hold the Power Key
until your display turns on.
• The battery may not be fully charged at the time of purchase. Fully charge the
battery before using.
• It is more efficient to charge the battery with the handset powered off.
• Battery operating time gradually decreases over time.
• If the battery fails to perform normally, you may need to replace the battery.

BATTERY HANDLING INFORMATION

DO'S
• Only use the battery and charger approved for use with the C781.
• Only use the battery for the system for which it is specified.
• Only use or replace the battery with a charging system or another battery that has been qualified with the
system per this standard, IEEE-Std-1725-2006. Use of an unqualified battery or charger may present a risk of
fire, explosion, leakage, or other hazard.
• Only use the battery for its original purpose. As an improper battery use may result in a fire, explosion or
other hazard.
• Try to keep batteries in a temperature between 41°F (5°C) and 95°F (35°C). If the battery is stored in
temperatures above or below the recommended range, give it time to warm up or cool down before using.
• Store the discharged battery in a cool, dark, and dry place.
• Purchase a new battery when its operating time gradually decreases after fully charging.
• Properly and promptly dispose of the battery according to local laws.
• Battery usage by children should be supervised.
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DON'TS
• Don't attempt to disassemble or open the battery – it is a sealed unit with no serviceable parts.
• Don't crush, bend or deform, puncture or shred the battery.
• Don't drop the phone or battery. If the phone or battery is dropped, especially on a hard surface, and the user
suspects damage, take it to a service center for inspection.
• Don't leave the battery in extremely hot or cold temperatures. Otherwise, it could significantly reduce the
capacity and lifetime of the battery.
• Don't modify or remanufacture, attempt to insert foreign objects into the battery, immerse or expose to water
or other liquids, expose to fire, explosion or other hazard.
• Don't accidentally short-circuit the battery by carrying it in your pocket or purse with other metallic objects
such as coins, clips and pens. This may critically damage the battery.
• Don't short-circuit a battery or allow metallic conductive objects to contact battery terminals.
• Don't dispose of the battery by placing into a fire.

USING A MEMORY CARD

The C781 supports the use of a microSD™ memory card as a source of external memory.
USING A MICROSD CARD
TM
By using a microSD TM card, you can store sounds, videos, images, photos, music, and
other files.
USING A MICRO SD CARD (OPTIONAl)
TM
1. Open the microSD card cover, and insert
TM
the microSD card into the slot with the gold
TM
contacts facing up.
2. Press the microSD card into the slot until
TM
you hear the "click", then close the microSD
card cover.
"SET MEMORY CARD AS DEFAULT STORAGE
3.
LOCATION?"
will appear on the display.
TM
01
02
03
04
05
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