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1 Hardware Overview 1.10 Batteries
1.10 Batteries
The computer has two types of batteries:
Main battery pack
RTC battery
The battery specifications are listed in table 1-8.
Table 1-8 Battery specifications
Battery name Material Output voltage Capacity
Main battery Lithium-Ion 10.8 V 8,400 mAh
RTC battery NiMH 3.0 V 17mAh
1.10.1 Main Battery
The removable main battery pack is the computer’s main power source when the AC adaptor
is not attached. When the main battery is fully charged, it can power the computer for the
following duration:
Power ON about 2.5 to 4 hours (Normal Mode)
1.10.2 Battery LED (Main Battery)
The battery LED displays the status of the battery pack. The battery LED on the computer
displays the status of the main battery.
Orange Main battery is charging. (with AC Adaptor)
Green Main battery is fully charged. (with AC Adaptor)
Orange / Flashing Power ON (without AC Adaptor)
Main battery charge is low.
LED Off Any other condition
1-28 Satellite A20 Maintenance Manual (960-444)