diff --git a/csharp/Lib/Devices/Battery48TL/Battery48TlRecord.Api.cs b/csharp/Lib/Devices/Battery48TL/Battery48TlRecord.Api.cs
index e8f1320d3..1939f8e47 100644
--- a/csharp/Lib/Devices/Battery48TL/Battery48TlRecord.Api.cs
+++ b/csharp/Lib/Devices/Battery48TL/Battery48TlRecord.Api.cs
@@ -18,7 +18,7 @@ public partial class Battery48TlRecord
      
     public Boolean ConnectedToDcBus => (_IoStates & 1) == 0;
     public Boolean Eoc              => Leds is { Green: On, Amber: Off, Blue : Off };
-
+    public UInt16  IoStates         => _IoStates; 
     
     public String SerialNumber => $"{_SerialNum1:X4}{_SerialNum2:X4}{_SerialNum3:X4}{_SerialNum4:X4}".TrimEnd('0');