Toshiba PROL550 Laptop User Manual


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1HardwareOverview Error!UsetheHometabtoapply2tothetextthatyouwantto
appearhere.Error!UsetheHometabtoapply2tothetextthatyouwanttoappearhere.
SatelliteL550MaintenanceManual 1-14
1.5 Batteries
Thecomputerhasthefollowingtwotypesofbatteries:
MainBatteryPack
RealTimeClock(RTC)Battery
1.5.1 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whentheACadapterisdetached.
1.5.2 BatteryChargingControl
BatterychargingiscontrolledbyECKB926.WhentheACadapterandbatterypackareattached
tothecomputer,theECKB926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1-3 Quick/NormalChargingTime
State ChargeTime
Off-StateCharge 3/6/12Cell About4hoursmax
On-StateCharge 3/6/12Cell About12hoursmax
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