Prolong battery life
Many features in your device increase the demand on battery power and reduce the
battery lifetime. To save battery power, note the following:
•
Features that use Bluetooth connectivity, or allowing such features to run in the
background while using other features, increase the demand on battery power.
Deactivate Bluetooth connectivity when you do not need it.
•
Features that use a wireless LAN (WLAN), or allowing such features to run in the
background while using other features, increase the demand on battery power.
WLAN connectivity is deactivated 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 selected
Packet data connection
>
When available
in the 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.
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•
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 3G network. To set the device to use only 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 adjust the display brightness and change the time-out period
after which the backlight is switched off. Select
Menu
>
Settings
and
Phone
>
Display
>
Brightness
or
Light time-out
.
•
Leaving applications running in the background increases the demand on battery
power. To access the applications you are not using, press and hold the menu
key, and select an application.