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Prolong battery life
Many features in your device increase the demand on battery power and reduce the
battery life time. To save battery power, observe the following:
• Always charge the battery fully.
• Activate power saving mode. Press the power key, and select Activate power
saving. The device settings, such as Network mode and the screen saver, are
optimized. To deactivate power saving mode, press the power key, and select
Deactivate power saving.
• Set your device to retrieve mail less frequently. Select Menu > Applications >
Mail > Settings, your mailbox, and Synchronization > Fetch frequency. If you
have additional mailboxes, you may need to set the retrieval frequency separately
for each mailbox.
• Mute unnecessary tones, such as keypad tones.
• Use wired headphones, rather than the loudspeaker.
• Deactivate the background animation effects. Select Menu > Settings and
Themes > General > Options > Theme effects > Off.
• Deactivate the Big clock screen saver. Select Menu > Settings and Themes >
Screen saver > None.
• Activate a dark theme. Select Menu > Settings and Themes > General.
• Change the length of the time-out period after which the device display switches
off. Select Menu > Settings and Phone > Display > Light time-out. To adjust the
light sensor that observes lighting conditions and adjusts the display brightness, in
the display settings, select Light sensor.
• If the signal strength of the cellular network varies in your area, it increases the
demand on battery power.
• If the network mode is set to use both GSM and 3G (dual mode) networks, the device
searches for the 3G network. To set your device to use only the GSM network, select
Menu > Settings and Connectivity > Network > Network mode > GSM.
• Deactivate Bluetooth when not needed. Select Menu > Settings and
Connectivity > Bluetooth > Bluetooth > Off.
• Stop your device from scanning for available Wi-Fi networks in the background.
Select Menu > Settings and Connectivity > Wi-Fi > Options > Settings > Show
Wi-Fi availability > Never.
• When connecting to the internet, use a Wi-Fi connection, rather than a packet data
(GPRS or 3G) connection.
• Set the packet data connection to be established only when needed. Select
Menu > Settings and Connectivity > Admin. settings > Packet data > Packet
data connection > When needed.
• When you are listening to music, and do not want to make or receive calls, activate
the offline profile.
Basic use 29