WeCo Srl Italia
www.wecobatteries.com
4K4 PRO V 1.11 28-9-2021
11.
INVERTER SETTINGS WITHOUT BMS-CAN CONNECTION (GENERAL)
Contact
, do not install an inverter without a BMS-CAN interface before obtaining approval from WeCo’s technical
staff.
For inverters which cannot communicate with the 4K4PRO battery module using the CAN Bus port, the inverter must be set in
accordance with the WeCo 4k4PRO battery specifications provided in the table below.
The parameters in the table below are only applicable to a SINGLE CLUSTER configuration
4K4 PRO
Low Voltage
Nominal DC Voltages
52.2
Usable Amp Hours
86
Rated kWh Capacity
4.5 kWh
Max Output Capacity
86 Ah
Max Charge Current
110 Adc
Suggested discharging Current
86Adc
DC Voltage Range (limited by contactor)
46 to 58.9 (do not use as settings)
Depth of Discharge 100%
Up to 100% (49,5V to 54,5V) from 90% to 100% 10A charge current to be set
Depth of Discharge 90%
51,5V to 54,0V 0.9C
Depth of Discharge 80%
51V to 53,5V
Operating Efficiency
97.8%
Operating Temp
–25° to 65°C
Charging Temp
-5° to 55°C
Self-Discharge Rate
<2% loss per month
Dimensions
46x50x15 cm
Weight
53
kg
WeCo 4K4PRO has a special Lithium Iron Phosphate chemical composition.
After the charging period the total voltage may drop from 54/55 V to 53/52V, this is a normal behavior.
When the battery reaches High Voltage or Cut Off (SOC 100%) do not continue to charge the battery.
In case of single cell overvoltage, the relay will open the circuit and the inverter will shut down.
In case of the inverter shutting down press the RUN button on the battery and shut down the battery, as described in Section 6.2.2 of this
manual.
