Casio C721 Cell Phone User Manual


 
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Safety
• Use only the Wall charger provided with the phone. Using
any charger other than the one included with the phone may
damage your phone or battery.
• Only use the battery and charger approved by the
manufacturer.
• Only use the battery for its original purpose.
• 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.
• Completely drain the battery before recharging. It may take one
to four days to completely drain.
• When the device is not used for long period, remove the battery
from the device.
• 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 dispose of the battery according to local regulations.
DON’Ts
• Don’t attempt to disassemble the battery—it is a sealed unit with
no serviceable parts.
• Don’t expose the battery terminals to any other metal object
(e.g., by carrying it in your pocket or purse with other metallic
objects such as coins, clips and pens).
This can short circuit and critically damage the battery, and may
cause the fire or injury.