diff --git a/custom_components/sws12500/__init__.py b/custom_components/sws12500/__init__.py
index 6925cbb..7cdc35e 100644
--- a/custom_components/sws12500/__init__.py
+++ b/custom_components/sws12500/__init__.py
@@ -66,6 +66,14 @@ PLATFORMS: list[Platform] = [Platform.SENSOR, Platform.BINARY_SENSOR]
 CONFIG_ENTRY_VERSION: int = 2
 
 
+def _shared_routes(hass: HomeAssistant) -> Routes | None:
+    """Return the route dispatcher shared across entry reloads, if it exists yet."""
+
+    domain_data = hass.data.get(DOMAIN)
+    routes = domain_data.get("routes") if isinstance(domain_data, dict) else None
+    return routes if isinstance(routes, Routes) else None
+
+
 async def async_migrate_entry(hass: HomeAssistant, entry: SWSConfigEntry) -> bool:
     """Migrate an old config entry.
 
@@ -277,10 +285,25 @@ async def async_unload_entry(hass: HomeAssistant, entry: SWSConfigEntry) -> bool
     unload_ok = await hass.config_entries.async_unload_platforms(entry, PLATFORMS)
 
     if unload_ok:
-        domain_data = hass.data.get(DOMAIN)
-        routes = domain_data.get("routes") if isinstance(domain_data, dict) else None
-        if isinstance(routes, Routes):
+        if (routes := _shared_routes(hass)) is not None:
             routes.deactivate()
         setattr(entry, "runtime_data", None)
 
     return unload_ok
+
+
+async def async_remove_entry(hass: HomeAssistant, entry: SWSConfigEntry) -> None:
+    """Release what the shared dispatcher keeps across an unload.
+
+    Unload is deliberately not the end of the line - the dispatcher keeps the ingress
+    observer so a payload that lands mid-reload is still recorded, and the next setup
+    repoints it at the new coordinator. Removal has no next setup, so the references
+    have to go here or the deleted entry's coordinators stay reachable from
+    `hass.data[DOMAIN]["routes"]` for the rest of the process.
+    """
+
+    del entry  # single_config_entry: the shared dispatcher belongs to the one entry
+
+    if (routes := _shared_routes(hass)) is not None:
+        routes.release()
+        _LOGGER.debug("Config entry removed; dispatcher references released.")
diff --git a/custom_components/sws12500/config_flow.py b/custom_components/sws12500/config_flow.py
index 9bb0af7..58da9f0 100644
--- a/custom_components/sws12500/config_flow.py
+++ b/custom_components/sws12500/config_flow.py
@@ -28,6 +28,7 @@ from .const import (
     POCASI_CZ_API_KEY,
     POCASI_CZ_ENABLED,
     POCASI_CZ_LOGGER_ENABLED,
+    POCASI_CZ_SEND_DEFAULT,
     POCASI_CZ_SEND_INTERVAL,
     POCASI_CZ_SEND_MINIMUM,
     SENSORS_TO_LOAD,
@@ -143,7 +144,9 @@ class ConfigOptionsFlowHandler(OptionsFlow):
             POCASI_CZ_API_KEY: self.config_entry.options.get(POCASI_CZ_API_KEY, ""),
             POCASI_CZ_ENABLED: self.config_entry.options.get(POCASI_CZ_ENABLED, False),
             POCASI_CZ_LOGGER_ENABLED: self.config_entry.options.get(POCASI_CZ_LOGGER_ENABLED, False),
-            POCASI_CZ_SEND_INTERVAL: self.config_entry.options.get(POCASI_CZ_SEND_INTERVAL, 30),
+            POCASI_CZ_SEND_INTERVAL: self.config_entry.options.get(
+                POCASI_CZ_SEND_INTERVAL, POCASI_CZ_SEND_DEFAULT
+            ),
         }
 
         self.pocasi_cz_schema = {
diff --git a/custom_components/sws12500/const.py b/custom_components/sws12500/const.py
index ae3a0b4..c3effed 100644
--- a/custom_components/sws12500/const.py
+++ b/custom_components/sws12500/const.py
@@ -226,6 +226,7 @@ WINDY_URL = "https://stations.windy.com/api/v2/observation/update"
 
 POCASI_CZ_URL: Final = "http://ms.pocasimeteo.cz"
 POCASI_CZ_SEND_MINIMUM: Final = 12  # minimal time to resend data
+POCASI_CZ_SEND_DEFAULT: Final = 30  # used when the option is unset or unreadable
 # Failed sends in a row before resending is disabled. Timeouts are excluded on purpose -
 # a slow upstream is transient, see the TimeoutError branch in `PocasiPush`.
 POCASI_CZ_MAX_RETRIES: Final = 3
diff --git a/custom_components/sws12500/pocasti_cz.py b/custom_components/sws12500/pocasti_cz.py
index d5344fc..c9ce483 100644
--- a/custom_components/sws12500/pocasti_cz.py
+++ b/custom_components/sws12500/pocasti_cz.py
@@ -27,6 +27,7 @@ from .const import (
     POCASI_CZ_ENABLED,
     POCASI_CZ_LOGGER_ENABLED,
     POCASI_CZ_MAX_RETRIES,
+    POCASI_CZ_SEND_DEFAULT,
     POCASI_CZ_SEND_INTERVAL,
     POCASI_CZ_SUCCESS,
     POCASI_CZ_UNEXPECTED,
@@ -34,7 +35,7 @@ from .const import (
     POCASI_INVALID_KEY,
     WSLINK_URL,
 )
-from .utils import anonymize, update_options
+from .utils import anonymize, to_int, update_options
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -55,7 +56,9 @@ class PocasiPush:
         self.last_status: str = "disabled" if not self.enabled else "idle"
         self.last_error: str | None = None
         self.last_attempt_at: str | None = None
-        self._interval = int(self.config.options.get(POCASI_CZ_SEND_INTERVAL, 30))
+        # A stored interval that does not parse falls back to the default rather than
+        # raising here, which would take the whole config entry setup down.
+        self._interval = to_int(self.config.options.get(POCASI_CZ_SEND_INTERVAL)) or POCASI_CZ_SEND_DEFAULT
 
         self.last_update = dt_util.utcnow()
         self.next_update = dt_util.utcnow() + timedelta(seconds=self._interval)
diff --git a/custom_components/sws12500/routes.py b/custom_components/sws12500/routes.py
index d4266fe..ae095c1 100644
--- a/custom_components/sws12500/routes.py
+++ b/custom_components/sws12500/routes.py
@@ -80,6 +80,23 @@ class Routes:
         """
         self.active = False
 
+    def release(self) -> None:
+        """Drop every config-entry object the dispatcher still holds.
+
+        `deactivate()` deliberately keeps the ingress observer so a payload arriving
+        while the entry is unloaded is still recorded. Removal is the other case: the
+        entry is gone for good, and this dispatcher outlives it in `hass.data`, so
+        holding its coordinators - and through them the removed ConfigEntry - would
+        keep them alive for the rest of the process.
+
+        Enablement flags are left alone: a re-added entry rebinds every handler
+        through the usual setup path, and `rebind_handler` only touches sticky routes
+        that are still enabled.
+        """
+        self._ingress_observer = None
+        for route in self.routes.values():
+            route.handler = unregistered
+
     def _resolve_route(self, request: Request) -> RouteInfo | None:
         """Find the matching RouteInfo for a request.
 
diff --git a/custom_components/sws12500/utils.py b/custom_components/sws12500/utils.py
index ace3718..d9daef7 100644
--- a/custom_components/sws12500/utils.py
+++ b/custom_components/sws12500/utils.py
@@ -232,11 +232,12 @@ def wind_dir_to_text(deg: float | str | None) -> UnitOfDir | None:
     return azimut
 
 
-def battery_level(battery: int | str | None) -> UnitOfBat:
+def battery_level(battery: Any) -> UnitOfBat:
     """Return battery level.
 
-    WSLink payload values often arrive as strings (e.g. "0"/"1"), so we accept
-    both ints and strings and coerce to int before mapping.
+    Goes through `to_int` like every other payload coercion: values arrive as
+    strings, sometimes spelled as decimals ("1.0"), and reading one of those as
+    "unknown" would contradict the binary battery entity fed by the same field.
 
     Returns UnitOfBat
     """
@@ -246,18 +247,10 @@ def battery_level(battery: int | str | None) -> UnitOfBat:
         1: UnitOfBat.NORMAL,
     }
 
-    if (battery is None) or (battery == ""):
+    vi = to_int(battery)
+    if vi is None:
         return UnitOfBat.UNKNOWN
 
-    vi: int
-    if isinstance(battery, int):
-        vi = battery
-    else:
-        try:
-            vi = int(battery)
-        except ValueError:
-            return UnitOfBat.UNKNOWN
-
     return level_map.get(vi, UnitOfBat.UNKNOWN)
 
 
diff --git a/tests/test_integration_lifecycle.py b/tests/test_integration_lifecycle.py
index 88b3a3e..1291684 100644
--- a/tests/test_integration_lifecycle.py
+++ b/tests/test_integration_lifecycle.py
@@ -24,6 +24,7 @@ from custom_components.sws12500.const import (
 from custom_components.sws12500.coordinator import IncorrectDataError, WeatherDataUpdateCoordinator
 from custom_components.sws12500.data import SWSRuntimeData
 from custom_components.sws12500.health_coordinator import HealthCoordinator
+from custom_components.sws12500.routes import unregistered
 
 ECOWITT_PATH = ECOWITT_URL_PREFIX + "/{webhook_id}"
 
@@ -425,6 +426,67 @@ async def test_async_unload_entry_deactivates_shared_routes(hass_with_http):
     assert response.status == 503
 
 
+@pytest.mark.asyncio
+async def test_async_remove_entry_releases_dispatcher_references(hass_with_http):
+    """Unload keeps the observer on purpose; removal has to let it go.
+
+    The dispatcher outlives the entry in `hass.data`, so a removed entry whose
+    coordinators are still referenced there stays alive for the rest of the process.
+    """
+    from custom_components.sws12500 import async_remove_entry
+
+    entry = MockConfigEntry(domain=DOMAIN, data={}, options={API_ID: "id", API_KEY: "key"})
+    entry.add_to_hass(hass_with_http)
+
+    coordinator = WeatherDataUpdateCoordinator(hass_with_http, entry)
+    coordinator_health = HealthCoordinator(hass_with_http, entry)
+    register_path(hass_with_http, coordinator, coordinator_health, entry)
+
+    routes = hass_with_http.data[DOMAIN]["routes"]
+    routes.deactivate()
+    # Unload deliberately keeps the observer so mid-reload ingress is still recorded.
+    assert routes._ingress_observer is not None
+
+    await async_remove_entry(hass_with_http, entry)
+
+    assert routes._ingress_observer is None
+    assert all(route.handler is unregistered for route in routes.routes.values())
+
+
+@pytest.mark.asyncio
+async def test_reload_after_unload_still_rebinds_the_observer(hass_with_http, monkeypatch):
+    """Release must not be reached on the reload path."""
+    entry = MockConfigEntry(domain=DOMAIN, data={}, options={API_ID: "id", API_KEY: "key"})
+    entry.add_to_hass(hass_with_http)
+
+    coordinator = WeatherDataUpdateCoordinator(hass_with_http, entry)
+    coordinator_health = HealthCoordinator(hass_with_http, entry)
+    register_path(hass_with_http, coordinator, coordinator_health, entry)
+
+    routes = hass_with_http.data[DOMAIN]["routes"]
+    first_observer = routes._ingress_observer
+
+    _mock_health_first_refresh(monkeypatch)
+    monkeypatch.setattr(
+        hass_with_http.config_entries,
+        "async_unload_platforms",
+        AsyncMock(return_value=True),
+    )
+    monkeypatch.setattr(
+        hass_with_http.config_entries,
+        "async_forward_entry_setups",
+        AsyncMock(return_value=True),
+    )
+    await async_unload_entry(hass_with_http, entry)
+
+    assert await async_setup_entry(hass_with_http, entry) is True
+
+    assert routes.active is True
+    assert routes._ingress_observer is not None
+    assert routes._ingress_observer != first_observer
+    assert routes.path_enabled(HEALTH_URL) is True
+
+
 @pytest.mark.asyncio
 async def test_async_unload_entry_returns_false_on_failure(hass_with_http):
     entry = MockConfigEntry(domain=DOMAIN, data={}, options={API_ID: "id", API_KEY: "key"})
diff --git a/tests/test_pocasi_push.py b/tests/test_pocasi_push.py
index 274f386..1940a15 100644
--- a/tests/test_pocasi_push.py
+++ b/tests/test_pocasi_push.py
@@ -111,6 +111,26 @@ def notify(monkeypatch):
     return created
 
 
+@pytest.mark.parametrize("stored", ["", "abc", None, [], 0])
+def test_unreadable_send_interval_falls_back_to_the_default(hass, stored):
+    """A corrupted option must not take the whole entry setup down.
+
+    `PocasiPush` is constructed from the coordinator during `async_setup_entry`, so a
+    raise here means the integration fails to load rather than forwarding late.
+    """
+    from custom_components.sws12500.const import POCASI_CZ_SEND_DEFAULT
+
+    entry = _make_entry()
+    entry.options[POCASI_CZ_SEND_INTERVAL] = stored
+
+    assert PocasiPush(hass, entry)._interval == POCASI_CZ_SEND_DEFAULT
+
+
+def test_a_stored_send_interval_is_honoured(hass):
+    entry = _make_entry(interval=45)
+    assert PocasiPush(hass, entry)._interval == 45
+
+
 @pytest.mark.asyncio
 async def test_push_data_to_server_missing_api_id_returns_early(monkeypatch, hass):
     entry = _make_entry(api_id=None, api_key="key")
diff --git a/tests/test_utils_more.py b/tests/test_utils_more.py
index cad8d75..6eb33f9 100644
--- a/tests/test_utils_more.py
+++ b/tests/test_utils_more.py
@@ -254,6 +254,19 @@ def test_battery_level_handles_none_empty_invalid_and_known_values():
     assert battery_level("2") == UnitOfBat.UNKNOWN
 
 
+def test_battery_level_accepts_the_decimal_spelling():
+    """The station sometimes sends integer fields as decimals.
+
+    Reading `1.0` as UNKNOWN would make the deprecated ENUM battery sensor contradict
+    the binary battery entity fed by the very same payload field.
+    """
+    assert battery_level("1.0") == UnitOfBat.NORMAL
+    assert battery_level("0.0") == UnitOfBat.LOW
+    assert battery_level(1.0) == UnitOfBat.NORMAL
+    assert battery_level("  ") == UnitOfBat.UNKNOWN
+    assert battery_level([]) == UnitOfBat.UNKNOWN
+
+
 
 def test_temperature_conversions_round_trip():
     # Use a value that is exactly representable in binary-ish floats