Table 1-6 Battery Specifications; Table 1-7 Quick/Normal Charging Time; Main Battery; Battery Charging Control - Toshiba TECRA S1 Maintenance Manual

1 Hardware Overview
1.9 Batteries
The computer has the following three types of batteries:
Main battery pack
Real time clock (RTC) battery
Secondary battery pack (Optionally installed in the selectable bay)
Table 1-6 lists the specifications of these batteries.
Battery name
Main battery pack
RTC battery
Secondary battery pack
1.9.1

Main Battery

The main battery pack serves as the computer's main power source when the AC adapter is
not attached. The main battery maintains the state of the computer so that it can resume it.
1.9.2

Battery Charging Control

Battery charging is controlled by LPC 47N253. When the AC adapter and battery pack are
attached to the computer, the LPC 47N253 controls the charge on/off state and detects a full
charge.
Battery Charge
When the AC adapter is attached, the battery is charged by off-state charge when the
system is powered off or by on-state charge when it is powered on.
1-18

Table 1-6 Battery specifications

Lithium Ion
Lithium Ion
Lithium Ion

Table 1-7 Quick/normal charging time

Off-state charge About 3 hours
On-state charge About 4 - 9 hours
Material Output voltage
10.8 V
3.0 V
10.8V
Charge time
TECRA S1 Maintenance Manual
1.9 Batteries
Capacity
6,450 mAh
15 mAh
4,300 mAh