diff --git a/homeassistant/components/august/binary_sensor.py b/homeassistant/components/august/binary_sensor.py
index 27371f5e3f6..fe5c1f06505 100644
--- a/homeassistant/components/august/binary_sensor.py
+++ b/homeassistant/components/august/binary_sensor.py
@@ -13,8 +13,8 @@ from yalexs.activity import (
     Activity,
     ActivityType,
 )
-from yalexs.doorbell import Doorbell, DoorbellDetail
-from yalexs.lock import Lock, LockDetail, LockDoorStatus
+from yalexs.doorbell import DoorbellDetail
+from yalexs.lock import LockDetail, LockDoorStatus
 from yalexs.manager.const import ACTIVITY_UPDATE_INTERVAL
 from yalexs.util import update_lock_detail_from_activity
 
@@ -29,7 +29,7 @@ from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.helpers.event import async_call_later
 
 from . import AugustConfigEntry, AugustData
-from .entity import AugustEntityMixin
+from .entity import AugustDescriptionEntity
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -180,21 +180,11 @@ async def async_setup_entry(
     async_add_entities(entities)
 
 
-class AugustDoorBinarySensor(AugustEntityMixin, BinarySensorEntity):
+class AugustDoorBinarySensor(AugustDescriptionEntity, BinarySensorEntity):
     """Representation of an August Door binary sensor."""
 
     _attr_device_class = BinarySensorDeviceClass.DOOR
-
-    def __init__(
-        self,
-        data: AugustData,
-        device: Lock,
-        description: BinarySensorEntityDescription,
-    ) -> None:
-        """Initialize the sensor."""
-        super().__init__(data, device)
-        self.entity_description = description
-        self._attr_unique_id = f"{self._device_id}_{description.key}"
+    description: BinarySensorEntityDescription
 
     @callback
     def _update_from_data(self) -> None:
@@ -219,29 +209,12 @@ class AugustDoorBinarySensor(AugustEntityMixin, BinarySensorEntity):
         self._attr_available = self._detail.bridge_is_online
         self._attr_is_on = self._detail.door_state == LockDoorStatus.OPEN
 
-    async def async_added_to_hass(self) -> None:
-        """Set the initial state when adding to hass."""
-        self._update_from_data()
-        await super().async_added_to_hass()
 
-
-class AugustDoorbellBinarySensor(AugustEntityMixin, BinarySensorEntity):
+class AugustDoorbellBinarySensor(AugustDescriptionEntity, BinarySensorEntity):
     """Representation of an August binary sensor."""
 
     entity_description: AugustDoorbellBinarySensorEntityDescription
-
-    def __init__(
-        self,
-        data: AugustData,
-        device: Doorbell | Lock,
-        description: AugustDoorbellBinarySensorEntityDescription,
-    ) -> None:
-        """Initialize the sensor."""
-        super().__init__(data, device)
-        self.entity_description = description
-        self._check_for_off_update_listener: Callable[[], None] | None = None
-        self._data = data
-        self._attr_unique_id = f"{self._device_id}_{description.key}"
+    _check_for_off_update_listener: Callable[[], None] | None = None
 
     @callback
     def _update_from_data(self) -> None:
@@ -280,11 +253,6 @@ class AugustDoorbellBinarySensor(AugustEntityMixin, BinarySensorEntity):
         self._check_for_off_update_listener()
         self._check_for_off_update_listener = None
 
-    async def async_added_to_hass(self) -> None:
-        """Call the mixin to subscribe and setup an async_track_point_in_utc_time to turn off the sensor if needed."""
-        self._update_from_data()
-        await super().async_added_to_hass()
-
     async def async_will_remove_from_hass(self) -> None:
         """When removing cancel any scheduled updates."""
         self._cancel_any_pending_updates()
diff --git a/homeassistant/components/august/entity.py b/homeassistant/components/august/entity.py
index 47cb966bdc1..a13a319b568 100644
--- a/homeassistant/components/august/entity.py
+++ b/homeassistant/components/august/entity.py
@@ -3,6 +3,7 @@
 from abc import abstractmethod
 
 from yalexs.doorbell import Doorbell, DoorbellDetail
+from yalexs.keypad import KeypadDetail
 from yalexs.lock import Lock, LockDetail
 from yalexs.util import get_configuration_url
 
@@ -10,7 +11,7 @@ from homeassistant.const import ATTR_CONNECTIONS
 from homeassistant.core import callback
 from homeassistant.helpers import device_registry as dr
 from homeassistant.helpers.device_registry import DeviceInfo
-from homeassistant.helpers.entity import Entity
+from homeassistant.helpers.entity import Entity, EntityDescription
 
 from . import DOMAIN, AugustData
 from .const import MANUFACTURER
@@ -78,6 +79,26 @@ class AugustEntityMixin(Entity):
         )
 
 
+class AugustDescriptionEntity(AugustEntityMixin):
+    """An August entity with a description."""
+
+    def __init__(
+        self,
+        data: AugustData,
+        device: Doorbell | Lock | KeypadDetail,
+        description: EntityDescription,
+    ) -> None:
+        """Initialize an August entity with a description."""
+        super().__init__(data, device)
+        self.entity_description = description
+        self._attr_unique_id = f"{self._device_id}_{description.key}"
+
+    async def async_added_to_hass(self) -> None:
+        """Update data before adding to hass."""
+        self._update_from_data()
+        await super().async_added_to_hass()
+
+
 def _remove_device_types(name: str, device_types: list[str]) -> str:
     """Strip device types from a string.
 
diff --git a/homeassistant/components/august/sensor.py b/homeassistant/components/august/sensor.py
index e5d29bb23d8..657368e019f 100644
--- a/homeassistant/components/august/sensor.py
+++ b/homeassistant/components/august/sensor.py
@@ -9,7 +9,7 @@ from typing import Any, Generic, TypeVar, cast
 from yalexs.activity import ActivityType, LockOperationActivity
 from yalexs.doorbell import Doorbell
 from yalexs.keypad import KeypadDetail
-from yalexs.lock import Lock, LockDetail
+from yalexs.lock import LockDetail
 
 from homeassistant.components.sensor import (
     RestoreSensor,
@@ -42,7 +42,7 @@ from .const import (
     OPERATION_METHOD_REMOTE,
     OPERATION_METHOD_TAG,
 )
-from .entity import AugustEntityMixin
+from .entity import AugustDescriptionEntity, AugustEntityMixin
 
 
 def _retrieve_device_battery_state(detail: LockDetail) -> int:
@@ -215,25 +215,13 @@ class AugustOperatorSensor(AugustEntityMixin, RestoreSensor):
             self._operated_autorelock = last_state.attributes[ATTR_OPERATION_AUTORELOCK]
 
 
-class AugustBatterySensor(AugustEntityMixin, SensorEntity, Generic[_T]):
+class AugustBatterySensor(AugustDescriptionEntity, SensorEntity, Generic[_T]):
     """Representation of an August sensor."""
 
     entity_description: AugustSensorEntityDescription[_T]
     _attr_device_class = SensorDeviceClass.BATTERY
     _attr_native_unit_of_measurement = PERCENTAGE
 
-    def __init__(
-        self,
-        data: AugustData,
-        device: Doorbell | Lock | KeypadDetail,
-        description: AugustSensorEntityDescription[_T],
-    ) -> None:
-        """Initialize the sensor."""
-        super().__init__(data, device)
-        self.entity_description = description
-        self._attr_unique_id = f"{self._device_id}_{description.key}"
-        self._update_from_data()
-
     @callback
     def _update_from_data(self) -> None:
         """Get the latest state of the sensor."""