Charging Curve - ENAG CDS4 12V/25A Manuel Utilisateur

3.3.5 Charging curve

BOOST in ON position
With this setting the CDS4 charger delivers a 5-step charge curve IUoU + automatic weekly recycling (switch E) + return
to automatic BOOST : BOOST, ABSORPTION, FLOATING + REFRESH, REBOOST.
V BOOST : BOOST voltage (see table above)
V FLOAT : FLOATING voltage (see table above : voltage with no BOOST)
T BOOST : BOOST maximum duration (see table above – paragraph 3.3.2)
T ABS : ABSORPTION maximum duration (see table above – paragraph 3.3.2 )
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 BOOST + T ABS (depending on setting). If the current falls below
20% of rated current, the FLOATING phase automatically kicks in. Duration and current intensity depend on how
charged the battery is.
FLOATING phase :
Starts after TBOOST or if output current has reached 20% of the charger's rated current. The voltage switches to the
FLOATING value and the rated current continues to drop.
CDS4-1M-2M-G - 03 EN.docx
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