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battery power. WLAN on your Nokia device switches off when you are
not trying to connect, not connected to an access point, or not scanning
for available networks. To further reduce battery consumption, you can
specify that your device does not scan, or scans less often, for available
networks in the background.
• If you have set Packet data connection to When available in
connection settings, and there is no packet data coverage (GPRS), the
device periodically tries to establish a packet data connection. To prolong
the operating time of your device, select Packet data connection >
When needed.
• The Maps application downloads new map information when you move
to new areas on the map, which increases the demand on battery power.
You can prevent the automatic download of new maps.
• If the signal strength of the cellular network varies much in your area,
your device must scan for the available network repeatedly. This
increases the demand on battery power.
If the network mode is set to dual mode in the network settings, the
device searches for the UMTS network. You can set the device to use only
the GSM network. To only use the GSM network, select Menu >
Settings and Connectivity > Network > Network mode > GSM.
• The backlight of the display increases the demand on battery power. In
the display settings, you can change the time-out after which the
backlight is switched off, and adjust the light sensor that observes
lighting conditions and adjusts the display brightness. Select Menu >
Settings and Phone > Display > Light time-out or Light sensor.
• Leaving applications running in the background increases the demand
on battery power. To close the applications you do not use, press and
hold the menu key, select Options > Show open apps., and navigate to
the application with the menu key. Press and hold the menu key, and
select Exit.
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