diff --git a/src/device/curtain.ts b/src/device/curtain.ts
index 27700c7f..53f8be5a 100644
--- a/src/device/curtain.ts
+++ b/src/device/curtain.ts
@@ -392,13 +392,15 @@ export class Curtain extends deviceBase {
       this.debugLog(`LightLevel: ${this.serviceData.lightLevel}, CurrentAmbientLightLevel: ${this.LightSensor.CurrentAmbientLightLevel}`)
     }
     // BatteryLevel
-    this.Battery.BatteryLevel = this.serviceData.battery
-    this.debugLog(`BatteryLevel: ${this.Battery.BatteryLevel}`)
-    // StatusLowBattery
-    this.Battery.StatusLowBattery = this.Battery.BatteryLevel < 10
-      ? this.hap.Characteristic.StatusLowBattery.BATTERY_LEVEL_LOW
-      : this.hap.Characteristic.StatusLowBattery.BATTERY_LEVEL_NORMAL
-    this.debugLog(`StatusLowBattery: ${this.Battery.StatusLowBattery}`)
+    if (this.serviceData.battery) {
+      this.Battery.BatteryLevel = this.serviceData.battery
+      this.debugLog(`BatteryLevel: ${this.Battery.BatteryLevel}`)
+      // StatusLowBattery
+      this.Battery.StatusLowBattery = this.Battery.BatteryLevel < 10
+        ? this.hap.Characteristic.StatusLowBattery.BATTERY_LEVEL_LOW
+        : this.hap.Characteristic.StatusLowBattery.BATTERY_LEVEL_NORMAL
+      this.debugLog(`StatusLowBattery: ${this.Battery.StatusLowBattery}`)
+    }
   }
 
   async openAPIparseStatus(): Promise<void> {