CPS2OEM25ADEB.doc
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3.2.5
Load curve
Boost in ON position
With this setting the CPS2 OEM 12V/25A charger produces a 3-state load curve IUoU: Boost, Absorption, Floating.
Boost Phase: starts up automatically when the charger is turned on if the battery is flat. The current is then at maximum
output.
Absorption Phase: begins when the voltage has reached the maximum Boost level. The current level starts falling.
These two phases combined last a maximum of 4 hours. The current depends on how charged the battery is.
Floating Phase: starts after 4 hours. The voltage switches to the Floating value and the rated current continues to drop.
U floating
U boost
4 Hrs
Boost Absorption Floating
0
I out
charger
t
I nom
U out
charger
t
Boost Absorption Floating
0
4 Hrs
Boost in OFF position
With this setting, the CPS2 OEM 12V/25A charger produces a single-stage UI type load curve. It generates a constant
voltage, supplying the current required by the battery(ies). Recharging time depends on the state of the battery, being
longer than when the boost is in the ON position.
U out
charger
t
0
U floating
0
I out
charger
t
I nom
