1 Hardware Overview
1-20 [CONFIDENTIAL] TECRA S3 Maintenance Manual (960-532)
1.7 Batteries
The computer has two types of batteries as follows:
Main battery pack
RTC battery
The battery specifications are listed in Table 1-7.
Table 1-7 Battery specifications
Battery name Material Output voltage Capacity
G71C0003W510
G71C0003W610 8,800 mAh
Main battery G71C0004G510
G71C0004G610
Lithium-Ion 10.8 V
4,700 mAh
RTC battery GDM710000041 NiMH 2.4 V 16 mAh
1.7.1 Main Battery
The removable main battery pack is the computer’s main power source when the AC adaptor
is not attached. The main battery maintain the state of the computer when the computer
enters in resume mode.
θ Battery Charge
When the AC adapter is connected, normal charging is used while the system is turned on
and quick charge is used while the system is turned off or in suspend mode.
(See Table 1-8)
Table 1-8 Time required for charges of main battery
Power ON Power OFF
Battery (8,800mAh) About 5.0 to 21.5 hours About 4.5 hours
Battery (4,700mAh) About 3.5 to 13.0 hours About 3.0 hours
Charge is stopped in the following cases.
1. The main battery is fully charged.
2. The main battery is removed.
3. Main battery or AC adapter voltage is abnormal.
4. Charging current is abnormal.