ACDelco AD-2002 Manual page 5

「Intec Power XT3™」Technology
Intec Power XT3™ regulates the whole system under 4-stage
charging platform. Uniquely formulated 2-step Constant Voltage Charging
combined with Constant Current charging which optimizes battery charging
performance and Pulse Charging which helps reduce battery plate sulfation.
Maintenance Charging mode w/ Auto Wake-up function is automatically
switched on upon completion of charging, maintaining optimum battery
charge condition.
 1 Stage：Constant voltage and current control
 2 Stage：Constant voltage and current control
 3 Stage：Constant voltage and current control
 4 Stage：The following are supplementary charge
 Maintenance
 Auto wakeup
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