HP 560 Series - Manual (Page 18)

14 | hp Jornada 560 series personal digital assistant User’s Guide
Powering Your hp Jornada
Because the data and files you save on your hp Jornada are stored in
RAM, maintaining a continuous power supply to the hp Jornada at all
times is extremely important. If your hp Jornada runs out of power, all
information stored in RAM is lost. The preinstalled programs will not be
deleted even if your hp Jornada suffers a loss of power; however, any
custom settings and programs you have added will be erased.
To safeguard data against loss in the event of power failure, you can save or
back up files to the hp safe store folder. The hp emergency backup application
automatically saves your PIM databases to the hp safe store folder. For more
information, see “Backing Up and Restoring Data” and “Managing Memory” in
chapter 6.
Your hp Jornada receives power from three sources: the main battery, the
backup battery, and the ac power adapter. The following sections
describe these sources. For tips on extending battery life, see “Managing
Power” in chapter 6.
Main Battery
The hp Jornada lithium-polymer battery pack (the main battery) provides
power to your hp Jornada while it is not connected to ac power. Under
typical usage conditions (if you do not use the backlight), the fully charged
main battery should provide power for up to 14 hours of use. Actual
battery life will vary depending on how you use your hp Jornada. Some
functions, such as listening to music, using the backlight, or operating
CompactFlash cards, use considerable power and may reduce this time
significantly.
The hp Jornada extended battery pack, which offers twice the battery life of the
standard battery, is available as an optional accessory.
The main battery is charged whenever your hp Jornada is connected to an
ac power source—either the ac adapter or the USB cradle. Connect your
hp Jornada to ac power or place it in the cradle when it is not in use, to