Notebook Batteries; Determining Battery Charge Level - Texas Instruments Extensa 660 Series Maintenance Manual

1.4 Notebook Batteries

The notebook computer can use one of three types of batteries:
Primary Battery - Nickel-Metal-Hydride type
Primary Battery - Lithium-Ion type (option)
Secondary Battery - Lithium-Ion type (option)
The primary battery is housed in the battery compartment and the Secondary battery
fits in the Media Bay compartment. The characteristics of the available batteries are
listed in Table 1-5.
Type
Maximum charge
current
Average charge time

1.4.1 Determining Battery Charge Level

As shown in Figure 1-8, the batteries used in the Extensa 660 have a series of lighted
indicators that show the amount of charge remaining in the battery (visible when the
Charge Display button is pressed).
1-12 General Description
Table 1-5 Battery Specifications
Primary
Ni-MH
1.3A
3 hours
Charge Indicators
Figure 8 Battery Charge Indicators
Primary
Li-Ion
CC/1.3A,
CV/12.3V
4 hours
Charge
Display
Button
Secondary
Li-Ion
CC/1.3A,
CV/12.3V
4 hours