Deprecate battery supported feature

homeassistant/components/vacuum/__init__.py

@@ -249,6 +249,7 @@ class StateVacuumEntity(
     __vacuum_legacy_state: bool = False
     __vacuum_legacy_battery_level: bool = False
     __vacuum_legacy_battery_icon: bool = False
+    __vacuum_legacy_battery_feature: bool = False
 
     def __init_subclass__(cls, **kwargs: Any) -> None:
         """Post initialisation processing."""
@@ -331,6 +332,25 @@ class StateVacuumEntity(
             exclude_integrations={DOMAIN},
         )
 
+    @callback
+    def _report_deprecated_battery_feature(self) -> None:
+        """Report on deprecated use of battery supported features.
+
+        Integrations should remove the battery supported feature when migrating
+        battery level and icon to a sensor.
+        """
+        report_usage(
+            f"is setting the battery supported feature which has been deprecated."
+            f" Integration {self.platform.platform_name} should remove this as part of migrating"
+            " the battery level and icon to a sensor",
+            core_behavior=ReportBehavior.LOG,
+            core_integration_behavior=ReportBehavior.LOG,
+            custom_integration_behavior=ReportBehavior.LOG,
+            breaks_in_ha_version="2026.7",
+            integration_domain=self.platform.platform_name if self.platform else None,
+            exclude_integrations={DOMAIN},
+        )
+
     @cached_property
     def battery_level(self) -> int | None:
         """Return the battery level of the vacuum cleaner."""
@@ -369,6 +389,9 @@ class StateVacuumEntity(
         supported_features = self.supported_features
 
         if VacuumEntityFeature.BATTERY in supported_features:
+            if self.__vacuum_legacy_battery_feature is False:
+                self._report_deprecated_battery_feature()
+                self.__vacuum_legacy_battery_feature = True
             data[ATTR_BATTERY_LEVEL] = self.battery_level
             data[ATTR_BATTERY_ICON] = self.battery_icon
 

tests/components/vacuum/test_init.py

@@ -574,3 +574,42 @@ async def test_vacuum_log_deprecated_battery_properties_using_attr(
         " please report it to the author of the 'test' custom integration"
         not in caplog.text
     )
+
+
+@pytest.mark.usefixtures("mock_as_custom_component")
+async def test_vacuum_log_deprecated_battery_supported_feature(
+    hass: HomeAssistant,
+    config_flow_fixture: None,
+    caplog: pytest.LogCaptureFixture,
+) -> None:
+    """Test incorrectly setting battery supported feature logs warning."""
+
+    entity = MockVacuum(
+        name="Testing",
+        entity_id="vacuum.test",
+    )
+    config_entry = MockConfigEntry(domain="test")
+    config_entry.add_to_hass(hass)
+
+    mock_integration(
+        hass,
+        MockModule(
+            "test",
+            async_setup_entry=help_async_setup_entry_init,
+            async_unload_entry=help_async_unload_entry,
+        ),
+        built_in=False,
+    )
+    setup_test_component_platform(hass, DOMAIN, [entity], from_config_entry=True)
+    assert await hass.config_entries.async_setup(config_entry.entry_id)
+
+    state = hass.states.get(entity.entity_id)
+    assert state is not None
+
+    assert (
+        "Detected that custom integration 'test' is setting the battery supported feature"
+        " which has been deprecated. Integration test should remove this as part of migrating"
+        " the battery level and icon to a sensor. This will stop working in Home Assistant 2026.7"
+        ", please report it to the author of the 'test' custom integration"
+        in caplog.text
+    )