To prevent this kind of data loss, a portion of the main
battery will keep your data safe for 72 hours if your
device runs out of power. An additional battery, the
internal backup battery, is designed to keep your data
safe when you remove the main battery. It will keep the
data safe for 30 minutes.
NOTE: Be sure to check that the internal backup battery
power remains at least at 50% OR ABOVE before you
remove the main battery by tapping the Start menu >
Settings > the System tab > Power.
Recharging your device
You can recharge your device in the following ways:
1. Connect your Pocket PC Phone directly to the AC adapter that is provided.
2. You can also charge your Pocket PC Phone by plugging the Sync cable into
your PC's USB port.
Plug the AC adapter
into an electrical outlet