Nokia 3390 Cell Phone User Manual


 
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Reference information
18
When the battery is running out of power and your phone only has a few
minutes of talk time remaining, a warning tone sounds and the
Battery
low
message appears
briefly. When no more talk time is left, a warning
tone is sounded and the phone switches itself off.
Do not short-circuit the battery. Accidental short-circuiting can occur
when a metallic object, like a coin, a clip, or a pen causes a direct connection
of the + and - terminals of the battery, which are metal strips on top of
the battery.
An example of short-circuiting could occur if you carry a spare battery in
your pocket or purse, where the battery could come into contact with
objects such as a coin. Short-circuiting could damage either the battery
or the connecting object.
Leaving the battery in hot or cold places, such as in a closed car in
either summer or winter conditions, will reduce the capacity and lifetime
of the battery. Always try to keep the battery between 15°C and 25°C
(59°F and 77°F).
A phone with a hot or cold battery might not work temporarily, even if the
battery is fully charged. The performance of batteries is particularly limited
in temperatures below 0°C (32°F).
The following list provides guidelines that you can follow:
When the operating time (talk time and standby time) is noticeably
shorter than normal, buy a new battery.
Use the battery only for its intended purpose.
Never use any charger or battery that is damaged and/or worn out.
Batteries must be recycled or disposed of properly. Do not dispose of
batteries by putting them in fire!
When you disconnect the power cord of any accessory, grasp and pull
the plug, not the cord.