diff --git a/csharp/Lib/Devices/Battery48TL/Battery48TlRecords.cs b/csharp/Lib/Devices/Battery48TL/Battery48TlRecords.cs
index a59f34e22..90c172e91 100644
--- a/csharp/Lib/Devices/Battery48TL/Battery48TlRecords.cs
+++ b/csharp/Lib/Devices/Battery48TL/Battery48TlRecords.cs
@@ -37,7 +37,7 @@ public class Battery48TlRecords
             Temperature                = records.Average(b => b.Temperatures.Cells.Average.Value),
             HeatingPower               = records.Sum(b => b.HeatingPower),
             TimeSinceToc               = records.Max(r => r.TimeSinceTOC),
-            CalibrationChargeRequested = records.All(r => r.CalibrationChargeRequested), // we changed this to All instead of Any, it's mean we wait for all batteries to reach the 14 days
+            CalibrationChargeRequested = records.Any(r => r.CalibrationChargeRequested), // we changed this to Any instead of All, it's mean we wait only one battery to reach the 14 days
             
             Dc = new()
             {