diff --git a/Service/MyTask/UpdateDownBatteryInfoTask.cs b/Service/MyTask/UpdateDownBatteryInfoTask.cs
index 0e33167..c856de6 100644
--- a/Service/MyTask/UpdateDownBatteryInfoTask.cs
+++ b/Service/MyTask/UpdateDownBatteryInfoTask.cs
@@ -61,6 +61,10 @@ public class UpdateDownBatteryInfoTask : ITask
                 {
                     continue;
                 }
+                if (info.Soc == null || info.BatteryNo == "-1")
+                {
+                    continue;
+                }
 
                 battery.DownBatteryNo = info.BatteryNo;
                 battery.DownBatterySoc = info.Soc;