Battery and charger information
Your device is powered by a rechargeable battery. The battery intended for use with this device is BL-4U. 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.
142 Product and safety information
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 battery.) This
might happen, for example, when you carry a spare battery in your pocket or purse. Short-circuiting the terminals may