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Charging Process Main output Battery I:
A new, complete main charging cycle is executed:
After a power failure (mains plug withdrawn or power failure).
In case of a lower deviation of the battery reset voltage of 12.75 V (25.5 V) beyond the maximum charger
current for 30 seconds due to high load.
1.
Batteries being totally discharged to 0 V, will be subject to a preliminary charging to 8 V (16 V) with
reduced current.
2.
Maximum charging current (
I-Phase
) in the mean voltage range from 8 V (16 V) to the beginning of the U1-
phase for short charging times, LED
„Main Charging“
is lighting; approx. 75 - 80 % of the capacity will be
charged. The duration of the I-phase depends on the battery conditions, the load of the consumers and the
charging state. The charger is recording the course of charging. For reasons of safety, the I-phase will be
terminated by the safety timer after 15 hours, at the latest (cell defects etc.).
3.
During the
U1-Phase
(LED
„Main Charging“
is lighting) the battery voltage will be kept constantly on a
high level. The green LED
„Battery Full“ is flashing
, and the additional high battery capacity will be
charged. The battery charging current is decreased slowly while full charging is increasing. The charger
controls the charging time as well as the charging current. From these values and from the course of charging
being recorded during the I-phase, the charger determines the
100 % full charge point
of the battery for
automatic commutation to U2. In contrast to conventional chargers with fixed default values for commutation
of the charging current, an unnecessary long U1-phase is avoided, which might be caused by consumer load
falsifying the charging current. The LED
„Main Charging“
will stop lighting.
4.
U2 Phase
(LED
„Battery Full“ is lighting permanently)
: The charger has now switched to the lower
voltage for conservation of the charge maintaining 100 % charge of the battery. Only the low compensating
recharging current is flowing being required for constant conservation of the full charge, which is determined
by the battery.
Charging Program Acid
/
Lead-acid
Battery (Lead Acid): The charging voltage U2 is limited in time to
ensure gentle recharging, and the equalisation charging of the cells with small charging current rates is a little
increased. After that, it will be switched to the third, lower voltage rate U3 for constant conservation of the
full charge.
5.
Battery Regeneration
: To ensure a circulation of acid accumulation in case of extended periods of
conservation of charge (due to e. g. stop periods of the vehicle), the charging voltage rate will be raised
automatically to U1 twice a week for one hour. After that, it will be returned directly to U2 (U3).
Note:
During the phases U1, U2 (U3) (Battery Full) almost the total
charger current
is available
for additional supply of consumer loads
without any discharge of the battery.
Charging Process Output Main Battery I:
(In case of 24 V operation: Multiply all indicated voltage rates and current rates by 2!)
1.
Preliminary Charging
of
totally discharged battery, gentle initial charging current (I-Phase)
2.
Bulk: Main Charging
constant, maximum charging current (I-Phase)
3.
Absorb: Main/Full Charging
constant charging voltage 1 (U1-Phase)
4.
Float: Full/Charging Conservation
constant continuous charging voltage 2 (U2-Phase)
