Prolong battery life
Many features in your device increase the demand
on battery power and reduce the battery life time.
To save battery power, note the following:
●
Features that use Bluetooth technology, or
allowing such features to run in the background
while using other features, increase the demand
on battery power. To prolong the operating time
of your device, turn the Bluetooth technology off
when you do not need it.
●
Features that use wireless LAN (WLAN), or
allowing such features to run in the background
while using other features, increase the demand
on battery power. WLAN on your Nokia device
switches off when you are not trying to connect,
not connected to another 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. WLAN
switches off in between background scans.
See
"Wireless LAN", p. 34.
When
Scan for
networks
is set to
Never
, the WLAN availability
icon is not shown in the standby mode. However,
you can still manually scan for available WLAN
networks and connect to WLAN networks as
usual.
●
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, which causes increased
demand on battery power. To prolong the
operating time of your device, select
Packet
data connection
>
When needed
.
17
Us
efu
l in
formation
●
The Maps application downloads new map
information when you scroll to new areas on the
map, which increases the demand on battery
power. You can prevent the device from
automatically downloading new maps.
See
"Maps", p. 91.
●
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. If it is not available, the device
uses the available GSM network. To only use the
GSM network, press , and select
Tools
>
Settings
>
Phone
>
Network
>
Network
mode
>
GSM
.
●
The backlight of the display increases the
demand on battery power. To change the time-
out after which the backlight is switched off,
press , and select
Tools
>
Settings
>
General
>
Personalisation
>
Display
>
Light time-out
. To adjust the light sensor that
observes the lighting conditions and adjusts the
brightness of the display, in the display settings,
select
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
, scroll to an application in the list, and press
C.
Pressing C does not close Music player. To close
Music player, select it from the list and
Options
>
Exit
.