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User’s Manual 6-3
Hardware & Options Operation
Communications
Battery
This section explains battery types, use, recharging methods and handling.
Battery types
The device has different types of batteries.
Battery pack
When the AC adaptor is not connected, the device's main power source is
a removable lithium ion battery pack, also referred to in this manual as the
main battery. You can purchase additional battery packs for extended use
of the device away from an AC power source although you should not
change the battery pack while the AC adaptor is connected.
Before you remove the battery pack, save your data and shut down the
device.
Real Time Clock (RTC) battery
The Real Time Clock (RTC) battery provides power for the internal real
time clock and calendar function and also maintains the system
configuration while the device is turned off.
Care and use of the battery pack
This section provides the important safety precautions in order to handle
your battery pack properly.
Refer to the enclosed Instruction Manual for Safety and Comfort for
detailed precautions and handling instructions.
Bluetooth Some models have Bluetooth wireless
communication function which eliminates the
need for cables between electronic devices such
as computers, printers and mobile phones. When
it is enabled, Bluetooth provides the wireless
personal area network environment which is safe
and trustworthy, that is quick and easy.
Wireless LAN The device is equipped with a Wireless LAN
module that is compatible with other Wireless
LAN systems based on Direct Sequence Spread
Spectrum/Orthogonal Frequency Division
Multiplexing radio technology that complies with
the IEEE 802.11 Standard.
3G Some models are equipped with a 3G module.