Toshiba Tecra A8 Maintenance Manual - Page 42

1 Hardware Overview 1.7 Batteries 1.7 Batteries The computer has two types of batteries as follows: ‰ Main battery ‰ Real Time Clock (RTC) battery The battery specifications are listed in Table 1-9. Table 1-9 Battery specifications Battery name Material Output voltage Main battery RTC battery G71C0004HC10/B10 G71C0002NC10/B10 G71C00036C10/B10 GDM710000041 (Intel Chipset) GDM710000045 (ATI Chipset) GDM710000046 (ATI Chipset) Li-Ion Li-Ion Ni-MH 10.8 V 10.8 V 2.4 V 3.6 V 3.6 V Capacity 4,400 mAh 3,600 mAh 16 mAh 16 mAh 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 maintains the state of the computer when the computer enters in resume mode. ‰ 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. Table 1-10 lists the charging time required for charges. Table 1-10 Time required for charges Battery type Main battery (3,600 mAh) Main battery (4,400 mAh) Power on (hours) About 4.5 to 10.0 About 5.5 to 12.0 Power off (hours) About 3.0 About 3.0 1-28 [CONFIDENTIAL] TECRA A8 /Satellite Pro A120 Maintenance Manual (960-573)