Nokia 2660 User Manual page 51

If the battery is completely discharged, it may take several
minutes before the charging indicator appears on the display or
before any calls can be made.
Use the battery only for its intended purpose. Never use any
charger or battery that is damaged.
Do not short-circuit the battery. Accidental short-circuiting can
occur when a metallic object such as a coin, clip, or pen causes
direct connection of the positive (+) and negative (-) terminals of
the battery. (These look like metal strips on the battery.) This
might happen, for example, when you carry a spare battery in
your pocket or purse. Short-circuiting the terminals may damage
the battery or the connecting object.
Leaving the battery in hot or cold places, such as in a closed car in
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 device with a hot or cold
battery may not work temporarily, even when the battery is fully
charged. Battery performance is particularly limited in
temperatures well below freezing.
Do not dispose of batteries in a fire as they may explode.
Batteries may also explode if damaged. Dispose of batteries
according to local regulations. Please recycle when possible. Do
not dispose as household waste.
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