I've just looked and the battery is reporting 27% SOC and 23% SOC in the power section.
{
"Battery_Details": {
"xxxxxxxxx": {
"Battery_Capacity": 201.23,
"Battery_Cell_10_Voltage": 3.204,
"Battery_Cell_11_Voltage": 3.2,
"Battery_Cell_12_Voltage": 3.2,
"Battery_Cell_13_Voltage": 3.201,
"Battery_Cell_14_Voltage": 3.2,
"Battery_Cell_15_Voltage": 3.201,
"Battery_Cell_16_Voltage": 3.201,
"Battery_Cell_1_Temperature": 20.7,
"Battery_Cell_1_Voltage": 3.2,
"Battery_Cell_2_Temperature": 20.1,
"Battery_Cell_2_Voltage": 3.201,
"Battery_Cell_3_Temperature": 19.9,
"Battery_Cell_3_Voltage": 3.203,
"Battery_Cell_4_Temperature": 20.6,
"Battery_Cell_4_Voltage": 3.203,
"Battery_Cell_5_Voltage": 3.203,
"Battery_Cell_6_Voltage": 3.201,
"Battery_Cell_7_Voltage": 3.201,
"Battery_Cell_8_Voltage": 3.2,
"Battery_Cell_9_Voltage": 3.201,
"Battery_Cells": 16,
"Battery_Cycles": 90,
"Battery_Design_Capacity": 158.72,
"Battery_Firmware_Version": 3005,
"Battery_Remaining_Capcity": 53.73,
"Battery_SOC": 27,
"Battery_Serial_Number": "xxxxxxxxxx",
"Battery_Temperature": 28.1,
"Battery_USB_present": true,
"Battery_Voltage": 51.215
}
"Power": {
"AC_Charge_Power": 0,
"Battery_Power": 2507,
"Charge_Power": 0,
"Discharge_Power": 2507,
"EPS_Power": 1947,
"Export_Power": 0,
"Grid_Power": -453,
"Import_Power": 453,
"Invertor_Power": 2536,
"Load_Power": 2994,
"PV_Power": 347,
"PV_Power_String_1": 179,
"PV_Power_String_2": 168,
"PV_Voltage_String_1": 221.2,
"PV_Voltage_String_2": 227.1,
"SOC": 23,
"Self_Consumption_Power": 2541