EG4 FLEXBOSS21 - Discharge Settings

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• Battery Priority Start Time 1-3: Start time for PV Charge Priority setting.
• Battery Priority End Time 1-3: End time for PV Charge Priority setting.
11.5 DISCHARGE SETTINGS
• Batt Discharge Control: If the inverter communicates with the Lithium battery and is
capable of closed-loop communication, select charge control according to “SOC.” * When
using Lead-Acid batteries or Lithium batteries without communication, select charge control
according to “VOLT.”
• Di
scharge Current Limit(Adc): Sets the discharge limit for lead-acid batteries.
• Start Discharge P_import(W): When set to 100, the battery will begin to discharge power to
take the loads when the imported power from the grid is higher than 100W.
• On-Grid Discharge Cut-Off SOC(%)/Volt(V): Select battery SOC/voltage at which battery
bank can take over the load from the grid.
• Off-Grid Discharge Cut-Off SOC(%)/Volt(V): Select how low to drain battery bank before
going on-grid and allow battery bank to charge. With EG4 batteries, do not allow this value to
go below 20%.
Forced Discharge
• Forced Discharge Enable/Disable: If the customer wants to discharge the battery, enable
the forced discharge function; set both the discharge power and time period.
• Forced Discharge Power(kW): Forced discharge power limit.
• Stop Discharge SOC(%)/Volt(V): If Battery SOC/voltage is lower than this limit, the inverter
will stop the forced discharging function. Note: For EG4 batteries, this value should be
ABOVE 20% of total battery capacity.
• PVSellToGrid(Comp. w/NEM3.0): Enable for only PV sell back.
• Forced Discharge Start Time 1-3: Start time for Forced Discharge.
• Forced Discharge End Time 1-3: End time for Forced Discharge.
NOTE:
*When using EG4 batteries with the FlexBoss 21 inverter, it is recommended to set
the cut-off SOC to 20% to maintain the 80% Depth of Discharge (DOD).