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.
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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 the edge of the battery.
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 Li-Ion batteries is particularly
limited in temperatures below 0° C (32° F).
The following list provides a guideline 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 or worn out.
• Batteries must be recycled or disposed of properly. Do not dispose of
batteries by putting them in the fire!
• When you disconnect the power cord of any accessory, grasp and pull
the plug, not the cord.
• IMPORTANT SAFETY INFORMATION
A brief overview of safety can be found in “Safety first” on page 1.
This section provides additional safety information.