Toshiba A135 Personal Computer User Manual


 
1.5 Power Supply 1 Hardware Overview
Satellite A130/ A135 Series Maintenance Manual
1-11
Battery charging control
The EC controls the following.
The quick charging ON/OFF
The detection of full charge
Detection of the low battery
The EC detects the low battery point by the gas gauge.
LB10M: The system will be driven by the battery for 12 more minutes.
LB0: The battery won’t be able to drive the system after 3 minutes.
LB1: The battery can drive the system only during the suspend process.
LB2: The battery cannot drive the system.
New battery installation
When a new battery is installed, the EC communicates with the E
2
PROM in the
battery to read information of the newly installed battery.
Battery capacity calculation
The EC reads battery remaining and percentage capacity from the battery through
SMBus.