HP (Hewlett-Packard) 820e PDAs & Smartphones User Manual


 
Chapter 2 | Getting started | 21
Use the AC adapter to plug your HP Jornada into external power whenever possible,
especially when connecting to a desktop PC, using a PC Card modem, NIC, or other
peripheral, or letting the LED indicator flash for extended time periods.
Installing the backup batteries
The two CR2032 coin-cell backup batteries protect your
data when the main battery runs out of power. The backup
batteries do not provide enough power to operate your
HPJornada, but they will preserve your data while you
replace the main battery or while you connect to AC power to
recharge.
To prevent loss of data, replace the backup batteries as soon as a warning message
appears on your screen indicating that backup battery power is low. See the Managing
battery power section in chapter7.)
To install the backup batteries
1. Slide down the cover plate from the backup battery
compartment on the left side of your HP Jornada (see
diagram).
2. Remove the battery tray from the compartment by
pulling the ribbon attached to the cover plate.
3. Place the two backup batteries in the tray with the
positive side facing up.