12
Electrical Performance
AC Charger
The inverter is equipped with an active PFC (power factor correction) multistage battery charger. The PFC
feature is used to control the amount of power used to charge the batteries in order to obtain a power factor as
close as possible to 1.
When AC voltage is in the range of 154~260VAC, the charging current is 100%.
The inverter is with a strong charging current, 100Amp for 12KW model, and the charge current can be
adjusted from 10A~100A
．
This will be helpful when using on a small capacity battery bank.
There are mainly 3 stages:
Bulk Charging
: This is the initial stage of charging. While Bulk Charging, the charger supplies the battery with
controlled constant current. The charger will remain in Bulk charge until the absorption charge voltage is
achieved.
Absorb Charging
: This is the second charging stage and begins after the absorb voltage has been reached.
Absorb charging provides the batteries with a constant voltage and reduces the DC charging current in order to
maintain the absorb voltage setting.
In this period
，
the inverter will start a T1 time; the charger will keep the boost voltage in Boost CV mode until
the T1 time has run out. When charging current is <0.01C or the time is over 12 hours, then drop the voltage
Down to the float voltage.
Float Charging
: The third charging stage occurs at the end of the absorb charging time. During float charging,
the charge voltage is reduced to the float charge voltage. In this stage, the battery are kept fully charged and
ready if needed by the inverter.
AC charging current
Model
Battery Voltage
Max. AC Charging Current
4KW
48V
40A
5KW
48V
50A
6KW
48V
60A
8KW
48V
70A
10KW
48V
80A
12KW
48V
100A
