Sharp SX813 User Manual page 144

Battery
• Use your phone only with batteries, chargers and
accessories recommended by the manufacturer. The
manufacturer disclaims any liability for damage
caused by the use of other chargers, batteries or
accessories.
• Network configuration and phone usage will
affect talk-time and stand-by 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.
144 Safety Precautions and Conditions of Use
• 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 stand-by 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 13.