Nokia N81 Cell Phone User Manual


 
Battery information
122
Copyright © 2007 Nokia. All rights reserved.
Battery information
Charging and discharging
Your device is powered by a rechargeable battery.
The battery can be charged and discharged hundreds of
times, but it will eventually wear out. When the talk and
standby times are noticeably shorter than normal, replace
the battery. Use only Nokia approved batteries, and
recharge your battery only with Nokia approved chargers
designated for this device.
If a replacement battery is being used for the first time or
if the battery has not been used for a prolonged period, it
may be necessary to connect the charger, then disconnect
and reconnect it to begin charging the battery.
Unplug the charger from the electrical plug and the device
when not in use. Do not leave a fully charged battery
connected to a charger, since overcharging may shorten
its lifetime. If left unused, a fully charged battery will lose
its charge over time.
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.
Do not dismantle or shred cells or batteries. In the event of
a battery leak, do not allow the liquid to come in contact
with the skin or eyes. In the event of such a leak, flush your
skin or eyes immediately with water, or seek medical help.