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7.4

Charge Settings

• Battery Charge Control: If the inverter communicates with the Lithium battery and is capa-

ble of closed-loop communication, then you can select charge control according to “SOC.” If

communication is not available, you can always select charge control according to “VOLT.”

• Charge Current Limit (Adc): The Max. Charge current limitation of the entire system.

AC Charge

• AC Charge Enable: If using AC (i.e., the Grid) to charge the battery; the customer must (1)

Enable “AC Charge Enable”, (2) set the max power to charge the battery from AC (AC Charge

Power (kW), (3) set the SOC and Voltage Limits (Start AC Charge SOC(%)/Volt(V) and Stop AC

Charge SOC (%)/Volt(V)) and (4) set the time period to use the AC to charge the battery. There

are 3 time periods that can be set. If the battery SOC and Voltage is within the limits, the sys-

tem will use AC from the Grid to charge the battery during the time that is set.

• AC Charge: Set AC charging according to Time or Volt(V)/SOC(%).

• AC Charge Power (kW): The max charging power from grid.

• Start AC Charge SOC(%)/Volt(V): Limit of SOC and Voltage at which system will start

charging batteries from AC.

• Stop AC Charge SOC(%)/Volt(V): Limit of SOC and Voltage at which system will stop charg-

ing batteries from Grid.

• AC Charge Start Time 1-3: Start AC Charging according to these time settings.

• AC Charge End Time 1-3: Stop AC Charging according to these time settings

Charge First

For the EG4 18KPV in default mode; if PV power is sufficient to cover the demands of home

loads, then PV power will prioritize home loads first. If there is excessive PV power; the re-

mainder will be used to charge the battery. If there is still PV power after powering loads and

battery charging; the remaining PV power will be sold back to the grid. In some situations, the

customer would want solar power to charge battery first, and if there is more energy than

needed; it will then power your loads. We would want to enable Charge First(PV) function.

Charge First power CMD is the max power percent when charge battery in charge first mode.

If the time is in the period that the user set and the battery SOC is less than the limit, the solar

power will used to charge the battery first.

• Charge First(PV): Enable this setting to prioritize Solar for charging batteries.

EG4 18KPV User Manual

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