Nokia 2720 - Manual (Page 60)

Battery
Battery and charger information
Your device is powered by a
rechargeable battery. The battery
intended for use with this device is
BL-4CT. Nokia may make additional
battery models available for this device.
This device is intended for use when
supplied with power from the following
chargers: AC-3. 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,
K, or UB.
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 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.
Safe removal. Always switch the device
off and disconnect the charger before
removing the battery.
Proper charging. 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.
Avoid extreme temperatures. 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. 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
60 Battery
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