Nokia 6340 User Manual

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Reference information
18
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 end 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 
such objects 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 Li-Ion 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.