User's Manual

The power management modes and warnings include the following:
•
LCD standby mode
•
Hard disk/CD-ROM standby mode
•
System standby/suspend mode
•
Battery-low warning
•
Standby/suspend upon battery low
4.2.9.2 AC Adapter
The notebook uses an AC adapter with built in over voltage and short circuit
protection.
The adapter can with stand a continuous short-circuit to DC output without
damage to the notebook logic components and resets to the normal power
mode after the fault condition is removed.
4.2.9.3 Primary Battery Pack
The Extensa 57x Series Notebooks use a Nickel Metal Hydride battery as the
primary battery pack. Specifications for the primary battery pack are
provided in Table 4-4.
Table 4-4 Primary Battery Pack Specifications
Function Specifications
Battery type NiMH (Nickel Metal-Hydride)
Cell Type A
Nominal voltage 8.4 V
Cell energy capacity 4200 mAH
Nominal rated
capacity
27 Watt-hours
Charge and discharge
cycles
500 (minimum)
Theory of Operation
4-9