1-16 110 Series
1.9 Batteries
The computer has three types of batteries:
❑ Main battery pack
❑ Backup battery
❑ Real Time Clock (RTC) battery
The removable main battery pack is the computer's main power source when the AC adapter
is not attached. The backup and main batteries maintain the state of the computer when
AutoResume is enabled. The RTC battery provides power to keep the current date, time, and
other setup information in memory while the computer is off.
Battery specifications are listed in Table 1-8.
Table 1-8 Battery specifications
Battery Name Material Output Voltage Capacity
Main battery Nickel Metal Hydride 12 V 2,800 mAH
Backup battery Nickel Metal Hydride 7.2 V 110 mAH
RTC battery Nickel Metal Hydride 3.6 V 30 mAH
1.9.1 Main Battery
The removable main battery pack is the computer’s main power source when the AC power
cord is not attached. The main battery recharges the backup battery. The backup and main
battery maintain the state of the computer when you enable AutoResume.
Battery Icon
The battery icon is located on top of the back rim of the computer. The color of the icon
shows the status of the removable main battery pack.
Orange The AC power cord is connected and charging the battery with
the power off.
Green The AC power cord is connected and the battery is fully
charged whether the power is on or off.
Blink orange The battery is low. The AC power cord must be connected to
recharge the battery.
No light Under any other conditions, the LED does not light.
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