--10--
Chronological Sequence at the BOARD Battery (OUT):
A new, complete main charging cycle will be executed:
After a standstill of the generator or removal of the control signal "D+".
If the voltage of the STARTER battery has dropped below the adjusted switching off threshold for more than 30
seconds.
When the BOARD battery is brought below the battery reset voltage for 30 seconds due to high load beyond the
maximum charging current.
1.
Activation of switched-off LiFePO4 batteries, charging aid for deeply discharged lead batteries, which will be subject to
gentle preliminary charging to approx. 8 V.
2.
Maximum charging current (
phase I
) in the mean voltage range from 8 V to the beginning of the phase U1 for short
charging times. The LED
"Power"
is lighting, and approx. 75 % (lead), approx. 90 % (LiFePO4) of the capacity will be
charged. The duration of phase I depends on the battery conditions, the load by the consumers and the charging
state. The charging converter records the charging process.
3.
In case of high battery voltage rates, the charging current will be slightly reduced for battery protection (orientation
phase). After that, automatic switching to the following phase U1.
4.
During the
phase U1
(LED
"Power"
is on), the battery voltage will be kept constant on a high level. The green LED
"Batt. 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 charging converter controls the charging time as well as the
charging current. From these values and from the course of charging being recorded during the phase I, the charging
converter determines the
100 % full charge point
of the battery for automatic switching to U2. In contrast to
conventional voltage transformers or boosters with fixed default values for charging current commutation, an
unnecessary long phase U1 is avoided, which might be caused by consumer loads being possibly also supplied, and
which are falsifying the charging current.
5.
Phase U2
(LED
"Batt. Full" is lighting permanently
):
The charging converter has now switched to the lower voltage for
trickle charge maintaining 100 % charge of the battery. Only the low compensating recharging current is flowing,
which is determined by the battery, and which is required for constant conservation of the full charge.
Note:
During the
phases U1, U2
(battery full) almost the
total charger current
is available for the additional
supply of
consumers
, without any discharge of the battery.
Battery Lifetime and Efficiency:
Keep the batteries cool,
LiFePO4
preferably
above 0°C
. Choose an appropriate location for
installation.
Store only fully charged batteries and recharge them periodically.
Open lead-acid batteries and batteries being "maintenance-free according to EN/DIN":
Check the acid level periodically!
Recharge deeply discharged lead batteries
immediately
!
LiFePO4: Only use complete batteries with BMS and safety circuit.
