Chapter 3 Managing battery power 15

3 Managing battery power

This chapter explains the importance of maintaining power to the HP Jornada. It also explains how to:

•view the remaining battery power

•charge the batteries

•change the main battery

•use Power Properties

•conserve battery power

Maintaining power to the HP Jornada

Because the data and files you save on the HP Jornada are stored in RAM, it is extremely important that you maintain a continuous power supply to the HP Jornada at all times. If the HP Jornada runs out of power, all information you have entered is lost. Although the Windows CE operating system and programs are stored in ROM and cannot be erased, any custom settings and programs you have added are lost.

When taking out the main battery, keep in mind that when the P/PC is without power, data retention is guaranteed for only 1 minute, and only if the backup battery level is “good” (check the Status tab of the Power panel; see the Using the Status tab section in chapter 3). You do not need to take out the main battery except to replace it with a spare battery (F1287A).

The HP Jornada uses a rechargeable lithium-ion battery, which supplies power whenever the P/PC is not connected to AC power. Under normal operating conditions, the battery should last for up to 6 hours of continuous use without recharging. Battery life varies, however, depending on how you use the P/PC.