Nokia N900 User Giude page 128

128 Product and safety information
For availability of approved accessories, check with your dealer.
An extensive range of accessories is available for your device. For more details, see
www.nokia.com.hk.
Practical rules about accessories
Keep all accessories out of the reach of small children.
•
When you disconnect the power cord of any accessory, grasp and pull the plug, not
•
the cord.
Check regularly that accessories installed in a vehicle are mounted and are
•
operating properly.
Installation of any complex car accessories must be made by qualified personnel
•
only.
Battery
Type: BL-5J
Talk time:
Up to 4.4 hours (WCDMA)
Standby time:
Up to 229 hours (WCDMA)
Important: Battery talk and stand-by times are estimates and only possible under
optimal network conditions. Actual battery talk and standby times depend on SIM cards,
features used, battery age and condition, temperatures to which battery is exposed,
network conditions, and many other factors, and may be significantly shorter than those
specified above. Ringing tones, hands free call handling, use in digital mode, and other
features will also consume the battery, and the amount of time a device is used for calls
will affect its stand-by time. Likewise, the amount of time that the device is turned on
and in the standby mode will affect its talk time.
Battery
Battery and charger information
Your device is powered by a rechargeable battery. The battery intended for use with this
device is BL-5J. 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-10. 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. For example,
the model numbers for the charger can be, among others, AC–10X etc.
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.
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