Nokia 5100 Cell Phone User Manual


 
Copyright © 2003 Nokia. All rights reserved.
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7. Battery information
Charging and Discharging
Your phone is powered by a rechargeable battery.
Note that a new battery's full performance is 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.
Use the battery only for its intended purpose.
Never use any charger or battery which is damaged.
Do not short-circuit the battery. Accidental short-circuiting can occur when a metallic
object ( e.g.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