User's Manual

53
Using Batteries
Precautions when using batteries
• Never use any charger or battery that is damaged in any way.
• Use the battery only for intended purpose.
•
No indication of charging: When you start charging a battery that is
empty or a battery that has not been used for a long time, it may take
up to 30 minutes before the battery icon appears in the display.
• If you use the phone near the network’s base station, it uses less
power; talk and standby times are greatly affected by the signal
strength on the cellular network and the parameters set by the network
operator.
• Battery charging time depends on the remaining battery charge and
the type of battery and charger used. The battery can be charged and
discharged hundreds of times, but it will gradually wear out. When the
operation time (talk time and standby time) is noticeably shorter than
normal, it is time to buy a new battery.
• If left unused, a fully charged battery will discharge itself over time.
When charging after complete discharge, the phone will not display
anything for about 30 minutes.
• Use only approved chargers. When a charger is not in use, disconnect
it from the power source. Do not leave the battery connected to a
charger for more than a week, since overcharging may shorten the
battery life.
• Extreme temperatures will affect the charging capacity of your battery:
it may require cooling or warming first.
• Do not leave the battery in hot or cold places, such as in a car in
summer or winter conditions, as it will reduce the capacity and lifetime
of the battery. Always try to keep the battery at room temperature. A
phone with a hot or cold battery may not work temporarily, even when
the battery is fully charged. Li-ion batteries are particularly affected by
temperatures below 0°C (32°F).
• Do not short-circuit the battery. Accidental short-circuiting can occur
when a metallic object (coin, clip or pen) causes a direct connection