Sharp SX633 User Manual page 127

• Network configuration and phone usage will affect
talk-time and standby time.
Using the games or camera will hasten battery consumption.
• When the battery charging alert is displayed on the
screen, charge the battery as soon as possible. If you
continue using your phone ignoring the alert, the phone may
cease to function, and all data and settings you have stored
may be lost at any moment.
• Before removing the battery from the phone, make sure the
phone is switched off.
• Replace and charge the new battery as soon as possible
after removing the old one.
• Do not touch the battery terminals. Batteries can cause
damage, injury or burns if a conductive material touches
exposed terminals. When the battery is detached from the
phone, use a cover made of non-conductive material for
keeping and carrying the battery safely.
• Recommended temperature for using and storing batteries is
approximately 20°C.
• The batteries' performance is limited in low temperatures,
particularly below 0°C and the phone may not work
temporarily regardless of the amount of remaining battery
power.
• Exposing the phone to extreme temperatures will shorten
battery life.
• The battery can be charged and discharged hundreds of
times but it will eventually wear out. When the operating time
(talk-time and standby time) is noticeably shorter than
normal, it is time to buy a new battery.
CAUTION
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE,
DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS
See "Battery Disposal" on page 12.
Aerial Care
• Do not cover the lower part of the phone (p. 8, No. 18) with
your hand when in use as this may interfere with the
performance of the built-in aerial. Call quality may
deteriorate leading to shortened talk-time and standby time
because the mobile phone has to operate on a higher power
level than is necessary.
• Use only the aerial supplied or one approved by Sharp for
your mobile phone. Using unauthorised or modified aerials
may damage the mobile phone. Moreover, since the mobile
phone may violate the appropriate regulations, it may lose
performance or exceed the limitation of SAR levels.
• To avoid impaired performance, do not damage the aerial of
the mobile phone.
• To avoid interfering with blasting operations, please turn off
the mobile phone in a blasting area or in a place where a
"turn off two-way radio" sign is posted.
Safety Precautions and Conditions of Use 127