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Nokia 6820i User Guide 101 Copyright © 2004 Nokia
Reference Information
23 Reference Information
• BATTERY INFORMATION
Charging and discharging
Your device is powered by a rechargeable battery. The full performance of a new battery 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 talk
and standby times are noticeably shorter than normal, buy a new battery. Use only Nokia
approved batteries, and recharge your battery only with Nokia approved chargers
designated for this device.
Unplug the charger from the electrical plug and the device when not in use. Do not leave
the battery connected to a charger. Overcharging may shorten its lifetime. If left unused, a
fully charged battery will lose its charge 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 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 59°F
and 77°F (15°C and 25°C). 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! Dispose of batteries according to local regulations.
Please recycle when possible. Do not dispose as household waste.
• ENHANCEMENTS, BATTERIES, AND CHARGERS
Check the model number of any charger before use with this device. This device is intended
for use when supplied with power from ACP-12 travel charger.
Warning: Use only batteries, chargers, and enhancements approved by Nokia for
use with this particular model. The use of any other types may invalidate any
approval or warranty, and may be dangerous.
For availability of approved enhancements, please check with your dealer. When you
disconnect the power cord of any enhancement, grasp and pull the plug, not the cord.
Your device and its enhancements may contain small parts. Keep them out of reach of
small children.