[8notime]

Since a lot of people never read the user guide, I'll add these practical tips directly from the guide:

Battery Saving Tips:

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

* When the device is not in use, press the Power button to switch off the display.

* Tap Start > Settings > All Settings. On the System tab, tap Power > Advanced tab of the Power settings screen. Here, you can specify the time before your device automatically turns off the display and backlight to
conserve battery power. For optimum conservation, specify three minutes or less.

* Tap Start > Settings > All Settings. On the System tab, tap Power > Backlight tab, clear the Auto adjust backlight check box, and manually adjust the backlight brightness settings.

* Use the AC phone charger to plug your device into an external power outlet whenever possible, especially when using a modem or other peripherals.

* Turn Bluetooth off when you are not using it. Make your device visible to other devices only when you are trying to establish a Bluetooth partnership.

* Turn Wi-Fi off when you are not using it.

* Lower the volume.

* Close battery-intensive programs such as the camera when you are done using them. Make sure the programs are ended and are not continuously running in the background.