# Adjust the brightness of the backlight

If your device supports it, you can increase or decrease the brightness of the backlight.

1. Tap > Settings > System tab > Power > Backlight tab.
2. Move the sliders toward the right to increase the brightness or toward the left to decrease the brightness.
3. To enable the device to automatically adjust the backlight according to ambient lighting conditions, select Auto adjust backlight. When selected, the backlight adjust sliding bars are disabled.

#### See also

Set the backlight to dim after a time delay

Make the battery last longer

# Set the backlight to dim after a time delay

If your device supports it, you can set the backlight to dim after a specific amount of time has elapsed.

1. Tap > Settings > System tab > Power.
2. Tap the Advanced tab.
3. Select the Turn off backlight if device is not used for check box, and specify the time delay. You can specify a delay for when the device is on battery power or external power.

#### See also

Adjust the brightness of the backlight

Make the battery last longer

# Make the battery last longer

How long your battery power lasts depends on battery type and how you use your device. Try the following to help preserve battery life:

- Tap > Settings > System tab > Power. On the Advanced tab, select Turn off device if not used for and specify when your device turns off to conserve battery power. For optimal conservation when using battery power, specify 3 minutes or less.
- Use the AC adapter to plug your device into an external power outlet whenever possible, especially when using a storage card or when using a modem or other peripherals.
- Adjust the backlight settings. For more information, see Set the backlight to dim after a time delay.
- When you know you are out of range of your Wi-Fi networks, turn Wi-Fi off. Searching for networks consumes a lot of power. For more information see Turn wireless power on or off.

Note You cannot use Internet calling while Wi-Fi is turned off.

- Turn Bluetooth off when you are not using it.
- Make the device visible to other devices only when you are trying to establish a Bluetooth partnership. For more information, see Make a device visible.
- Select the Receive all incoming beams setting only while you are trying to receive beamed files. To find this setting, tap Start > Settings > Connections > Beam.
- Lower the volume.

#### See also

Adjust the brightness of the backlight

Set the backlight to dim after a time delay