diff --git a/homeassistant/components/bang_olufsen/__init__.py b/homeassistant/components/bang_olufsen/__init__.py
index 70f9cc7b572..04566f1a4c3 100644
--- a/homeassistant/components/bang_olufsen/__init__.py
+++ b/homeassistant/components/bang_olufsen/__init__.py
@@ -34,7 +34,12 @@ class BeoData:
 
 type BeoConfigEntry = ConfigEntry[BeoData]
 
-PLATFORMS = [Platform.EVENT, Platform.MEDIA_PLAYER, Platform.SENSOR]
+PLATFORMS = [
+    Platform.BINARY_SENSOR,
+    Platform.EVENT,
+    Platform.MEDIA_PLAYER,
+    Platform.SENSOR,
+]
 
 
 async def async_setup_entry(hass: HomeAssistant, entry: BeoConfigEntry) -> bool:
diff --git a/homeassistant/components/bang_olufsen/binary_sensor.py b/homeassistant/components/bang_olufsen/binary_sensor.py
new file mode 100644
index 00000000000..f90f648d96f
--- /dev/null
+++ b/homeassistant/components/bang_olufsen/binary_sensor.py
@@ -0,0 +1,63 @@
+"""Binary Sensor entities for the Bang & Olufsen integration."""
+
+from __future__ import annotations
+
+from mozart_api.models import BatteryState
+
+from homeassistant.components.binary_sensor import (
+    BinarySensorDeviceClass,
+    BinarySensorEntity,
+)
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.dispatcher import async_dispatcher_connect
+from homeassistant.helpers.entity_platform import AddConfigEntryEntitiesCallback
+
+from . import BeoConfigEntry
+from .const import CONNECTION_STATUS, DOMAIN, WebsocketNotification
+from .entity import BeoEntity
+from .util import supports_battery
+
+
+async def async_setup_entry(
+    hass: HomeAssistant,
+    config_entry: BeoConfigEntry,
+    async_add_entities: AddConfigEntryEntitiesCallback,
+) -> None:
+    """Set up Binary Sensor entities from config entry."""
+    if await supports_battery(config_entry.runtime_data.client):
+        async_add_entities(new_entities=[BeoBinarySensorBatteryCharging(config_entry)])
+
+
+class BeoBinarySensorBatteryCharging(BinarySensorEntity, BeoEntity):
+    """Battery charging Binary Sensor."""
+
+    _attr_device_class = BinarySensorDeviceClass.BATTERY_CHARGING
+    _attr_is_on = False
+
+    def __init__(self, config_entry: BeoConfigEntry) -> None:
+        """Init the battery charging Binary Sensor."""
+        super().__init__(config_entry, config_entry.runtime_data.client)
+
+        self._attr_unique_id = f"{self._unique_id}_charging"
+
+    async def async_added_to_hass(self) -> None:
+        """Turn on the dispatchers."""
+        self.async_on_remove(
+            async_dispatcher_connect(
+                self.hass,
+                f"{DOMAIN}_{self._unique_id}_{CONNECTION_STATUS}",
+                self._async_update_connection_state,
+            )
+        )
+        self.async_on_remove(
+            async_dispatcher_connect(
+                self.hass,
+                f"{DOMAIN}_{self._unique_id}_{WebsocketNotification.BATTERY}",
+                self._update_battery_charging,
+            )
+        )
+
+    async def _update_battery_charging(self, data: BatteryState) -> None:
+        """Update battery charging."""
+        self._attr_is_on = bool(data.is_charging)
+        self.async_write_ha_state()
diff --git a/homeassistant/components/bang_olufsen/diagnostics.py b/homeassistant/components/bang_olufsen/diagnostics.py
index d5be9cf2e92..b484fdaab05 100644
--- a/homeassistant/components/bang_olufsen/diagnostics.py
+++ b/homeassistant/components/bang_olufsen/diagnostics.py
@@ -4,6 +4,7 @@ from __future__ import annotations
 
 from typing import TYPE_CHECKING, Any
 
+from homeassistant.components.binary_sensor import DOMAIN as BINARY_SENSOR_DOMAIN
 from homeassistant.components.event import DOMAIN as EVENT_DOMAIN
 from homeassistant.components.media_player import DOMAIN as MEDIA_PLAYER_DOMAIN
 from homeassistant.components.sensor import DOMAIN as SENSOR_DOMAIN
@@ -97,4 +98,15 @@ async def async_get_config_entry_diagnostics(
             state_dict.pop("context")
             data["battery_level"] = state_dict
 
+    # Get Mozart battery charging entity
+    if entity_id := entity_registry.async_get_entity_id(
+        BINARY_SENSOR_DOMAIN, DOMAIN, f"{config_entry.unique_id}_charging"
+    ):
+        if state := hass.states.get(entity_id):
+            state_dict = dict(state.as_dict())
+
+            # Remove context as it is not relevant
+            state_dict.pop("context")
+            data["charging"] = state_dict
+
     return data
diff --git a/tests/components/bang_olufsen/const.py b/tests/components/bang_olufsen/const.py
index 129c9bebee0..d0dc6ec5641 100644
--- a/tests/components/bang_olufsen/const.py
+++ b/tests/components/bang_olufsen/const.py
@@ -72,7 +72,10 @@ TEST_NAME_4 = f"{TEST_MODEL_A5}-{TEST_SERIAL_NUMBER_4}"
 TEST_JID_4 = f"{TEST_TYPE_NUMBER}.{TEST_ITEM_NUMBER}.{TEST_SERIAL_NUMBER_4}@products.bang-olufsen.com"
 TEST_MEDIA_PLAYER_ENTITY_ID_4 = f"media_player.beosound_a5_{TEST_SERIAL_NUMBER_4}"
 TEST_HOST_4 = "192.168.0.4"
-TEST_BATTERY_A5_SENSOR_ENTITY_ID = f"sensor.beosound_a5_{TEST_SERIAL_NUMBER_4}_battery"
+TEST_BATTERY_SENSOR_ENTITY_ID = f"sensor.beosound_a5_{TEST_SERIAL_NUMBER_4}_battery"
+TEST_BATTERY_CHARGING_BINARY_SENSOR_ENTITY_ID = (
+    f"binary_sensor.beosound_a5_{TEST_SERIAL_NUMBER_4}_charging"
+)
 
 # Beoremote One
 TEST_REMOTE_SERIAL = "55555555"
diff --git a/tests/components/bang_olufsen/snapshots/test_diagnostics.ambr b/tests/components/bang_olufsen/snapshots/test_diagnostics.ambr
index b5b4a97c020..0d45adf710b 100644
--- a/tests/components/bang_olufsen/snapshots/test_diagnostics.ambr
+++ b/tests/components/bang_olufsen/snapshots/test_diagnostics.ambr
@@ -131,6 +131,14 @@
       'entity_id': 'sensor.beosound_a5_44444444_battery',
       'state': '5',
     }),
+    'charging': dict({
+      'attributes': dict({
+        'device_class': 'battery_charging',
+        'friendly_name': 'Living room Balance Charging',
+      }),
+      'entity_id': 'binary_sensor.beosound_a5_44444444_charging',
+      'state': 'off',
+    }),
     'config_entry': dict({
       'data': dict({
         'host': '192.168.0.4',
diff --git a/tests/components/bang_olufsen/snapshots/test_event.ambr b/tests/components/bang_olufsen/snapshots/test_event.ambr
index ab83a00f42e..65c3681e41c 100644
--- a/tests/components/bang_olufsen/snapshots/test_event.ambr
+++ b/tests/components/bang_olufsen/snapshots/test_event.ambr
@@ -1,6 +1,7 @@
 # serializer version: 1
 # name: test_button_event_creation_a5
   list([
+    'binary_sensor.beosound_a5_44444444_charging',
     'event.beosound_a5_44444444_bluetooth',
     'event.beosound_a5_44444444_next',
     'event.beosound_a5_44444444_play_pause',
diff --git a/tests/components/bang_olufsen/test_binary_sensor.py b/tests/components/bang_olufsen/test_binary_sensor.py
new file mode 100644
index 00000000000..72a5b776bd8
--- /dev/null
+++ b/tests/components/bang_olufsen/test_binary_sensor.py
@@ -0,0 +1,44 @@
+"""Test the bang_olufsen binary sensor entities."""
+
+from unittest.mock import AsyncMock
+
+from mozart_api.models import BatteryState
+
+from homeassistant.const import STATE_OFF, STATE_ON
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.entity_registry import EntityRegistry
+
+from .conftest import mock_websocket_connection
+from .const import TEST_BATTERY, TEST_BATTERY_CHARGING_BINARY_SENSOR_ENTITY_ID
+
+from tests.common import MockConfigEntry
+
+
+async def test_battery_charging(
+    hass: HomeAssistant,
+    entity_registry: EntityRegistry,
+    mock_mozart_client: AsyncMock,
+    mock_config_entry_a5: MockConfigEntry,
+) -> None:
+    """Test the battery charging time entity."""
+    # Ensure battery entities are created
+    mock_mozart_client.get_battery_state.return_value = TEST_BATTERY
+
+    # Load entry
+    mock_config_entry_a5.add_to_hass(hass)
+    await hass.config_entries.async_setup(mock_config_entry_a5.entry_id)
+    await mock_websocket_connection(hass, mock_mozart_client)
+    await hass.async_block_till_done()
+
+    # Initial state is False
+    assert (states := hass.states.get(TEST_BATTERY_CHARGING_BINARY_SENSOR_ENTITY_ID))
+    assert states.state == STATE_OFF
+
+    # Check binary sensor reacts as expected to WebSocket events
+    battery_callback = mock_mozart_client.get_battery_notifications.call_args[0][0]
+
+    battery_callback(BatteryState(is_charging=True))
+    await hass.async_block_till_done()
+
+    assert (states := hass.states.get(TEST_BATTERY_CHARGING_BINARY_SENSOR_ENTITY_ID))
+    assert states.state == STATE_ON
diff --git a/tests/components/bang_olufsen/test_diagnostics.py b/tests/components/bang_olufsen/test_diagnostics.py
index 2d4bac00122..f8984cbb564 100644
--- a/tests/components/bang_olufsen/test_diagnostics.py
+++ b/tests/components/bang_olufsen/test_diagnostics.py
@@ -56,7 +56,6 @@ async def test_async_get_config_entry_diagnostics(
 
 async def test_async_get_config_entry_diagnostics_with_battery(
     hass: HomeAssistant,
-    entity_registry: EntityRegistry,
     hass_client: ClientSessionGenerator,
     mock_config_entry_a5: MockConfigEntry,
     mock_mozart_client: AsyncMock,
diff --git a/tests/components/bang_olufsen/test_sensor.py b/tests/components/bang_olufsen/test_sensor.py
index d379f874efd..f1219ecb1b1 100644
--- a/tests/components/bang_olufsen/test_sensor.py
+++ b/tests/components/bang_olufsen/test_sensor.py
@@ -12,7 +12,7 @@ from homeassistant.core import HomeAssistant
 from .conftest import mock_websocket_connection
 from .const import (
     TEST_BATTERY,
-    TEST_BATTERY_A5_SENSOR_ENTITY_ID,
+    TEST_BATTERY_SENSOR_ENTITY_ID,
     TEST_REMOTE_BATTERY_LEVEL_SENSOR_ENTITY_ID,
     TEST_REMOTE_SERIAL,
 )
@@ -34,13 +34,13 @@ async def test_battery_level(
     await hass.config_entries.async_setup(mock_config_entry_a5.entry_id)
     # Deliberately avoid triggering a battery notification
 
-    assert (states := hass.states.get(TEST_BATTERY_A5_SENSOR_ENTITY_ID))
+    assert (states := hass.states.get(TEST_BATTERY_SENSOR_ENTITY_ID))
     assert states.state is STATE_UNKNOWN
 
     # Check sensor reacts as expected to WebSocket events
     await mock_websocket_connection(hass, mock_mozart_client)
 
-    assert (states := hass.states.get(TEST_BATTERY_A5_SENSOR_ENTITY_ID))
+    assert (states := hass.states.get(TEST_BATTERY_SENSOR_ENTITY_ID))
     assert states.state == str(TEST_BATTERY.battery_level)
 
 
diff --git a/tests/components/bang_olufsen/util.py b/tests/components/bang_olufsen/util.py
index 03c7b0092c7..caf1fe77352 100644
--- a/tests/components/bang_olufsen/util.py
+++ b/tests/components/bang_olufsen/util.py
@@ -11,7 +11,8 @@ from homeassistant.components.bang_olufsen.const import (
 )
 
 from .const import (
-    TEST_BATTERY_A5_SENSOR_ENTITY_ID,
+    TEST_BATTERY_CHARGING_BINARY_SENSOR_ENTITY_ID,
+    TEST_BATTERY_SENSOR_ENTITY_ID,
     TEST_MEDIA_PLAYER_ENTITY_ID,
     TEST_MEDIA_PLAYER_ENTITY_ID_2,
     TEST_MEDIA_PLAYER_ENTITY_ID_3,
@@ -52,7 +53,8 @@ def get_a5_entity_ids() -> list[str]:
     """Return a list of entity_ids that a Beosound A5 provides."""
     buttons = [
         TEST_MEDIA_PLAYER_ENTITY_ID_4,
-        TEST_BATTERY_A5_SENSOR_ENTITY_ID,
+        TEST_BATTERY_SENSOR_ENTITY_ID,
+        TEST_BATTERY_CHARGING_BINARY_SENSOR_ENTITY_ID,
         *_get_button_entity_ids("beosound_a5_44444444"),
     ]
     buttons.remove("event.beosound_a5_44444444_microphone")