Charging And Discharging - Nokia 5100 User Manual

7. Battery information
I Charging and Discharging
Your phone is powered by a rechargeable battery.
Note that a new battery's full performance may be achieved only after
two or three complete charge and discharge cycles!
The battery can be charged and discharged hundreds of times but it will
eventually wear out. When the operating time (talk time and standby
time) is noticeably shorter than normal, it is time to buy a new battery.
Use only batteries approved by the phone manufacturer and recharge
your battery only with the chargers approved by the manufacturer.
Unplug the charger when not in use. Do not leave the battery connected
to a charger for longer than a week, since overcharging may shorten its
lifetime. If left unused, a fully charged battery will discharge itself over
time.
Temperature extremes can affect the ability of your battery to charge;
allow it to cool down or warm up first.
Use the battery only for its intended purpose.
Never use any charger or battery which is damaged or worn out.
Do not short-circuit the battery. Accidental short-circuiting can occur
when a metallic object (coin, clip, or pen) causes direct connection of the
+ and - terminals of the battery (metal strips on the battery), 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 phone with a hot or cold battery may temporarily not work, even
when the battery is fully charged. Batteries' performance is particularly
limited in temperatures well below freezing.
Do not dispose of batteries in a fire!
Dispose of batteries according to applicable local regulations (for
example, recycling). Do not dispose of as household waste.
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