Chapter 2: Getting Started
Power Properties
2.5.1.1Battery
To check the battery power status, click on the Battery tab:
Figure 2.3 Power Properties: Battery
This tab describes the main and backup batteries, and their state. A warning message to change or recharge the battery appears when the main or backup battery levels become critically low.
This tab includes a checkbox, Using multiple main battery packs. When this check- box is selected, the NETBOOK PRO calibrates each battery pack anew each time the pack is inserted. When this checkbox is not checked, the NETBOOK PRO retains the battery calibration information when the battery pack is removed. See “Battery Calibration” below for details.
This tab also displays an indication of charge or discharge current for the main bat- tery.The user can see how the current varies as the main battery charges and dis- charges, the backlight is adjusted, or a peripheral card is inserted.
Note: The current measurement displayed may be up to ten seconds old.
2.5.1.2Battery Calibration
The NETBOOK PRO uses ‘battery calibration’ to increase the accuracy of the remaining charge indication for its rechargeable battery.
When a battery pack is first connected, the NETBOOK PRO tracks its discharge and charge current and voltage over a full discharge/charge cycle. This enables it to form a picture of how the battery behaves, and thus give accurate estimates of how long
16Psion Teklogix NETBOOK PRO Win CE 4.2 User Manual
