Kussmaul Electronics 091-128-12-40 - Manual (Page 4)

THREE STAGE CHARGING CURVE
BATTERY
CURRENT
BATTERY
VOLTAGE
FLOAT
STAGE
ABSORPTION STAGE
Voltage Increasing
Current Constant
Voltage Constant
Current Decreasing
Voltage Constant
Full Charge Maintained
STAGE I
CONSTANT CURRENT
(BULK)
STAGE II
CONSTANT VOLTAGE
(ABSORPTION)
STAGE III
CONSTANT VOLTAGE
(FLOAT)
TIME
Figure 1