diff --git a/homeassistant/components/v2c/__init__.py b/homeassistant/components/v2c/__init__.py
index b80163742cb..0c07891df72 100644
--- a/homeassistant/components/v2c/__init__.py
+++ b/homeassistant/components/v2c/__init__.py
@@ -9,7 +9,6 @@ from homeassistant.const import CONF_HOST, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.httpx_client import get_async_client
 
-from .const import DOMAIN
 from .coordinator import V2CUpdateCoordinator
 
 PLATFORMS: list[Platform] = [
@@ -20,7 +19,10 @@ PLATFORMS: list[Platform] = [
 ]
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
+type V2CConfigEntry = ConfigEntry[V2CUpdateCoordinator]
+
+
+async def async_setup_entry(hass: HomeAssistant, entry: V2CConfigEntry) -> bool:
     """Set up V2C from a config entry."""
 
     host = entry.data[CONF_HOST]
@@ -29,7 +31,7 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
 
     await coordinator.async_config_entry_first_refresh()
 
-    hass.data.setdefault(DOMAIN, {})[entry.entry_id] = coordinator
+    entry.runtime_data = coordinator
 
     if coordinator.data.ID and entry.unique_id != coordinator.data.ID:
         hass.config_entries.async_update_entry(entry, unique_id=coordinator.data.ID)
@@ -41,7 +43,4 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
 
 async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Unload a config entry."""
-    if unload_ok := await hass.config_entries.async_unload_platforms(entry, PLATFORMS):
-        hass.data[DOMAIN].pop(entry.entry_id)
-
-    return unload_ok
+    return await hass.config_entries.async_unload_platforms(entry, PLATFORMS)
diff --git a/homeassistant/components/v2c/binary_sensor.py b/homeassistant/components/v2c/binary_sensor.py
index 203cc9f3396..28ad3665996 100644
--- a/homeassistant/components/v2c/binary_sensor.py
+++ b/homeassistant/components/v2c/binary_sensor.py
@@ -12,11 +12,10 @@ from homeassistant.components.binary_sensor import (
     BinarySensorEntity,
     BinarySensorEntityDescription,
 )
-from homeassistant.config_entries import ConfigEntry
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 
-from .const import DOMAIN
+from . import V2CConfigEntry
 from .coordinator import V2CUpdateCoordinator
 from .entity import V2CBaseEntity
 
@@ -51,11 +50,11 @@ TRYDAN_SENSORS = (
 
 async def async_setup_entry(
     hass: HomeAssistant,
-    config_entry: ConfigEntry,
+    config_entry: V2CConfigEntry,
     async_add_entities: AddEntitiesCallback,
 ) -> None:
     """Set up V2C binary sensor platform."""
-    coordinator: V2CUpdateCoordinator = hass.data[DOMAIN][config_entry.entry_id]
+    coordinator = config_entry.runtime_data
 
     async_add_entities(
         V2CBinarySensorBaseEntity(coordinator, description, config_entry.entry_id)
diff --git a/homeassistant/components/v2c/diagnostics.py b/homeassistant/components/v2c/diagnostics.py
index 9f9df8723e0..289d585b164 100644
--- a/homeassistant/components/v2c/diagnostics.py
+++ b/homeassistant/components/v2c/diagnostics.py
@@ -5,21 +5,19 @@ from __future__ import annotations
 from typing import TYPE_CHECKING, Any
 
 from homeassistant.components.diagnostics import async_redact_data
-from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import CONF_HOST
 from homeassistant.core import HomeAssistant
 
-from .const import DOMAIN
-from .coordinator import V2CUpdateCoordinator
+from . import V2CConfigEntry
 
 TO_REDACT = {CONF_HOST, "title"}
 
 
 async def async_get_config_entry_diagnostics(
-    hass: HomeAssistant, entry: ConfigEntry
+    hass: HomeAssistant, entry: V2CConfigEntry
 ) -> dict[str, Any]:
     """Return diagnostics for a config entry."""
-    coordinator: V2CUpdateCoordinator = hass.data[DOMAIN][entry.entry_id]
+    coordinator = entry.runtime_data
 
     if TYPE_CHECKING:
         assert coordinator.evse
diff --git a/homeassistant/components/v2c/number.py b/homeassistant/components/v2c/number.py
index 376509c4780..2ff70226132 100644
--- a/homeassistant/components/v2c/number.py
+++ b/homeassistant/components/v2c/number.py
@@ -13,11 +13,10 @@ from homeassistant.components.number import (
     NumberEntity,
     NumberEntityDescription,
 )
-from homeassistant.config_entries import ConfigEntry
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 
-from .const import DOMAIN
+from . import V2CConfigEntry
 from .coordinator import V2CUpdateCoordinator
 from .entity import V2CBaseEntity
 
@@ -48,11 +47,11 @@ TRYDAN_NUMBER_SETTINGS = (
 
 async def async_setup_entry(
     hass: HomeAssistant,
-    config_entry: ConfigEntry,
+    config_entry: V2CConfigEntry,
     async_add_entities: AddEntitiesCallback,
 ) -> None:
     """Set up V2C Trydan number platform."""
-    coordinator: V2CUpdateCoordinator = hass.data[DOMAIN][config_entry.entry_id]
+    coordinator = config_entry.runtime_data
 
     async_add_entities(
         V2CSettingsNumberEntity(coordinator, description, config_entry.entry_id)
diff --git a/homeassistant/components/v2c/sensor.py b/homeassistant/components/v2c/sensor.py
index 0c59993ac0e..fc0cc0bfaa8 100644
--- a/homeassistant/components/v2c/sensor.py
+++ b/homeassistant/components/v2c/sensor.py
@@ -15,13 +15,12 @@ from homeassistant.components.sensor import (
     SensorEntityDescription,
     SensorStateClass,
 )
-from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import UnitOfEnergy, UnitOfPower, UnitOfTime
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.helpers.typing import StateType
 
-from .const import DOMAIN
+from . import V2CConfigEntry
 from .coordinator import V2CUpdateCoordinator
 from .entity import V2CBaseEntity
 
@@ -106,11 +105,11 @@ TRYDAN_SENSORS = (
 
 async def async_setup_entry(
     hass: HomeAssistant,
-    config_entry: ConfigEntry,
+    config_entry: V2CConfigEntry,
     async_add_entities: AddEntitiesCallback,
 ) -> None:
     """Set up V2C sensor platform."""
-    coordinator: V2CUpdateCoordinator = hass.data[DOMAIN][config_entry.entry_id]
+    coordinator = config_entry.runtime_data
 
     async_add_entities(
         V2CSensorBaseEntity(coordinator, description, config_entry.entry_id)
diff --git a/homeassistant/components/v2c/switch.py b/homeassistant/components/v2c/switch.py
index 0974a712153..cd89e954275 100644
--- a/homeassistant/components/v2c/switch.py
+++ b/homeassistant/components/v2c/switch.py
@@ -17,11 +17,10 @@ from pytrydan.models.trydan import (
 )
 
 from homeassistant.components.switch import SwitchEntity, SwitchEntityDescription
-from homeassistant.config_entries import ConfigEntry
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 
-from .const import DOMAIN
+from . import V2CConfigEntry
 from .coordinator import V2CUpdateCoordinator
 from .entity import V2CBaseEntity
 
@@ -80,11 +79,11 @@ TRYDAN_SWITCHES = (
 
 async def async_setup_entry(
     hass: HomeAssistant,
-    config_entry: ConfigEntry,
+    config_entry: V2CConfigEntry,
     async_add_entities: AddEntitiesCallback,
 ) -> None:
     """Set up V2C switch platform."""
-    coordinator: V2CUpdateCoordinator = hass.data[DOMAIN][config_entry.entry_id]
+    coordinator = config_entry.runtime_data
 
     async_add_entities(
         V2CSwitchEntity(coordinator, description, config_entry.entry_id)
diff --git a/tests/components/v2c/conftest.py b/tests/components/v2c/conftest.py
index 9cc3e4ed9e2..1803298be28 100644
--- a/tests/components/v2c/conftest.py
+++ b/tests/components/v2c/conftest.py
@@ -6,7 +6,7 @@ import pytest
 from pytrydan.models.trydan import TrydanData
 from typing_extensions import Generator
 
-from homeassistant.components.v2c import DOMAIN
+from homeassistant.components.v2c.const import DOMAIN
 from homeassistant.const import CONF_HOST
 from homeassistant.helpers.json import json_dumps