Load Curve - ENAG CDS3 12V/80A Manuel D'utilisation

3.3.4. Load curve

BOOST in ON position
With this setting the CDS3 charger delivers a 3-state load curve IUoU: BOOST, Absorption, Floating.
Flat battery
U out
charger
Boost
U boost
U floating
Tboost
0
I out
charger
Boost
I nom
Tboost
0
U Boost: BOOST voltage (see table above)
U Floating: Floating voltage (see table above: voltage with no BOOST)
T Boost: BOOST maximum duration (see table above)
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 T
15% of rated current, the floating phase automatically kicks in. Duration and current intensity depend on
how charged the battery is.
Floating phase: starts after T
The voltage switches to the Floating value and the rated current continues to drop.
Absorption Floating
t
Absorption Floating
t
or if output current has reached 15% of the charger's rated current.
BOOST
Battery only slightly flat
U out
charger
Boost
U boost
< Tboost
0
I out
charger
Boost
I nom
15% I nom
< Tboost
0
(depending on setting). If the current falls below
BOOST
CDS3-3M-DEE
Absorption Floating
U floating
t
Absorption Floating
15% I nom
t
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