diff --git a/custom_components/bluetti_bt/binary_sensor.py b/custom_components/bluetti_bt/binary_sensor.py
index b177e1c..a52a269 100644
--- a/custom_components/bluetti_bt/binary_sensor.py
+++ b/custom_components/bluetti_bt/binary_sensor.py
@@ -104,6 +104,10 @@ class BluettiBinarySensor(CoordinatorEntity, BinarySensorEntity):
     @callback
     def _handle_coordinator_update(self) -> None:
         """Handle updated data from the coordinator."""
+
+        if self.coordinator.persistent_conn and not self.coordinator.client.is_connected:
+            return
+
         _LOGGER.debug("Updating state of %s", unique_id_loggable(self._attr_unique_id))
         if not isinstance(self.coordinator.data, dict):
             _LOGGER.debug(
diff --git a/custom_components/bluetti_bt/coordinator.py b/custom_components/bluetti_bt/coordinator.py
index f8ded43..66caf77 100644
--- a/custom_components/bluetti_bt/coordinator.py
+++ b/custom_components/bluetti_bt/coordinator.py
@@ -179,22 +179,6 @@ class PollingCoordinator(DataUpdateCoordinator):
 
         parsed_data: dict = {}
 
-        # Connect to device
-        try:
-            async with async_timeout.timeout(20):
-                await self.client.connect()
-
-                await self.client.start_notify(
-                    BluetoothClient.NOTIFY_UUID, self._notification_handler
-                )
-                self.has_notifier = True
-        except TimeoutError:
-            self.logger.debug("Connection timed out for device %s", mac_loggable(self._address))
-            return None
-        except BleakError as err:
-            self.logger.debug("Bleak error: %s", err)
-            return None
-
         try:
             async with async_timeout.timeout(15):
 
diff --git a/custom_components/bluetti_bt/sensor.py b/custom_components/bluetti_bt/sensor.py
index 9721f70..9dedc9b 100644
--- a/custom_components/bluetti_bt/sensor.py
+++ b/custom_components/bluetti_bt/sensor.py
@@ -130,6 +130,10 @@ class BluettiSensor(CoordinatorEntity, SensorEntity):
     @callback
     def _handle_coordinator_update(self) -> None:
         """Handle updated data from the coordinator."""
+
+        if self.coordinator.persistent_conn and not self.coordinator.client.is_connected:
+            return
+
         _LOGGER.debug("Updating state of %s", unique_id_loggable(self._attr_unique_id))
         if not isinstance(self.coordinator.data, dict):
             _LOGGER.debug(
diff --git a/custom_components/bluetti_bt/switch.py b/custom_components/bluetti_bt/switch.py
index 6e4d5f0..1ca2c69 100644
--- a/custom_components/bluetti_bt/switch.py
+++ b/custom_components/bluetti_bt/switch.py
@@ -114,6 +114,10 @@ class BluettiSwitch(CoordinatorEntity, SwitchEntity):
     @callback
     def _handle_coordinator_update(self) -> None:
         """Handle updated data from the coordinator."""
+
+        if self.coordinator.persistent_conn and not self.coordinator.client.is_connected:
+            return
+
         _LOGGER.debug("Updating state of %s", unique_id_loggable(self._attr_unique_id))
         if not isinstance(self.coordinator.data, dict):
             _LOGGER.error(