Toshiba Satellite L630-ST2G02 Maintenance Manual - Page 34

1 Hardware Overview 12 Cell RTC Battery Lithium Ion Lithium Ion 10.8 V 3.0 V 1.7 Batteries 9000 mAh 14 mAh 1.7.1 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. 1.7.2 Battery Charging Control Battery charging is controlled by WINBOND NPCE781L. When AC adapter and battery pack are attached to the computer, the NPCE781L 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. Table 1-5 Quick/Normal Charging Time State Off-State Charge On-State Charge 3/6/12 Cell 3/6/12 Cell Charge Time About 4 hours max About 4~10 hours max NOTE: The time required for normal charge depends on the power consumption by the system. Using the fluorescent lamp and frequently accessing the disk consume much power and lengthen the charge time. Any of the following cases stops battery charge: 1. The battery becomes fully charged. 2. The AC adapter or battery pack is removed. 22 Satellite/Satellite Pro/L630/L635 Maintenance Manual