Nokia Stereo Bluetooth Headset BH-905i

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4. Battery and charger information
This device has an internal, nonremovable, rechargeable battery. Do not attempt 
to remove the battery from the device as you may damage the device. This device 
is intended for use when supplied with power from the following chargers: AC-3, 
AC-4, AC-5, AC-15, and DC-4. The exact charger model number may vary 
depending on the type of plug. The plug variant is identified by one of the 
following: E, X, AR, U, A, C, K, or B. The battery can be charged and discharged 
hundreds of times, but it will eventually wear out.
Operating times are estimates only. Actual times are affected by, for example, 
device settings, features being used, battery condition, and temperature.
If the battery has not been used for a long time, to begin charging, you may need 
to connect the charger, then disconnect and reconnect it.
If the battery is completely discharged, it may take several minutes before the 
charging indicator is displayed.
When your charger is not in use, unplug it from the electrical plug and the device. 
Do not leave a fully charged battery connected to a charger, as overcharging may 
shorten the battery's lifetime. If left unused, a fully charged battery will lose its 
charge over time.
Always 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.
Do not dispose of batteries in a fire as they may explode. Dispose of batteries 
according to local regulations. Recycle when possible. Do not dispose as 
household waste.
Use the charger for its intended purpose only. Improper use or use of unapproved 
chargers may present a risk of fire, explosion, or other hazard, and may invalidate 
any approval or warranty. If you believe the charger is damaged, take it to a 
service centre for inspection before continuing to use it. Never use a damaged 
charger. Only use the charger indoors.
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