HP 600 Series User Manual page 118

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• Remove fonts, sounds, and wallpaper you do not need.
• Delete files and voice memos you do not need, or transfer them to your
desktop PC for storage and delete them from your HP Jornada.
Accessories
Because the data and files you save on your HP Jornada are stored in RAM,
it is extremely important that you maintain a continuous power supply to
your HP Jornada at all times. If your HP Jornada runs out of power, all informa-
tion you have entered will be lost. The Windows CE operating system and
programs are stored in ROM, and cannot be erased; however, any programs
you have added and custom settings in existing programs will be lost.
HP Jornada uses two types of batteries. The main battery supplies power
whenever your HP Jornada is not connected to AC power. The backup
battery protects your data when the main battery is not installed (for in-
stance, while you exchange the main battery).
The main battery is the HP Jornada Standard Battery, a rechargeable lithium
ion battery pack. Use only the HP Jornada Standard Battery (HP F1281A) or
the HP Jornada Extended Battery (HP F1282A) with your HP Jornada. These
batteries are designed only for use with the HP Jornada 600 series H/PC and
should not be used to power other devices.
Under normal circumstances, the main battery will provide up to 7 hours of
continuous use without recharging. Actual battery life will vary depending
on screen brightness, what applications you use, and operating conditions.
When the main battery runs very low, your HP Jornada will shut down, and
you will be unable to restart it until you replace the main battery, recharge
the battery, or connect to AC power.