Nokia 7210 Supernova

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Enhancements
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.
Battery
Battery and charger information
Your device is powered by a rechargeable battery. The battery intended for use
with this device is BL-4CT. This device is intended for use when supplied with
power from the following chargers: AC-4. 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. Use of an unapproved battery or charger may
present a risk of fire, explosion, leakage, or other hazard.
The exact charger model number may vary depending on the type of plug. The
plug variant is identified by one of the following: E, EB, X, AR, U, A, C, or UB.
If a 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. 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.
Always switch the device off and disconnect the charger before removing 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.
Always try to keep the battery between 15°C and 25°C (59°F and 77°F). Extreme
temperatures reduce the capacity and lifetime of the battery. A device with a hot
or cold battery may not work temporarily. Battery performance is particularly
limited in temperatures well below freezing.
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
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