1-18
400 Series
1.10 Batteries
The 400 series has three types of batteries:
❑
Main battery pack
❑
Backup battery
❑
Real Time Clock (RTC) battery
Battery specifications are listed in table 1-9.
Table 1-9 Battery specifications
Battery name
Material
Output voltage
Capacity
Main battery
Lithium-Ion
10.8 V
1,200 mAH
Backup battery
Nickel Metal Hydride
7.2 V
110 mAH
RTC battery
Nickel Metal Hydride
3.6 V
30 mAH
1.10.1
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 400 series. The icon shows
the status of the removable battery pack.
The status of each can be determined by color:
Orange
The battery is being charged. (AC power cord is attached.)
Green
The battery is fully charged. (AC power cord is attached.)
Blink orange
The battery is low when the power is on.
No light
Under any other conditions, the LED does not light.