diff --git a/homeassistant/components/tessie/binary_sensor.py b/homeassistant/components/tessie/binary_sensor.py
index 015fa63736f..9b7d6861dfb 100644
--- a/homeassistant/components/tessie/binary_sensor.py
+++ b/homeassistant/components/tessie/binary_sensor.py
@@ -34,7 +34,7 @@ DESCRIPTIONS: tuple[TessieBinarySensorEntityDescription, ...] = (
         is_on=lambda x: x == TessieState.ONLINE,
     ),
     TessieBinarySensorEntityDescription(
-        key="charge_state_battery_heater_on",
+        key="climate_state_battery_heater",
         device_class=BinarySensorDeviceClass.HEAT,
         entity_category=EntityCategory.DIAGNOSTIC,
     ),
diff --git a/homeassistant/components/tessie/strings.json b/homeassistant/components/tessie/strings.json
index 62de4f276f4..8e1e47f934f 100644
--- a/homeassistant/components/tessie/strings.json
+++ b/homeassistant/components/tessie/strings.json
@@ -252,7 +252,7 @@
       "state": {
         "name": "Status"
       },
-      "charge_state_battery_heater_on": {
+      "climate_state_battery_heater": {
         "name": "Battery heater"
       },
       "charge_state_charge_enable_request": {
diff --git a/tests/components/tessie/snapshots/test_binary_sensors.ambr b/tests/components/tessie/snapshots/test_binary_sensors.ambr
index 854e1350234..7bc191de6ed 100644
--- a/tests/components/tessie/snapshots/test_binary_sensors.ambr
+++ b/tests/components/tessie/snapshots/test_binary_sensors.ambr
@@ -165,8 +165,8 @@
     'platform': 'tessie',
     'previous_unique_id': None,
     'supported_features': 0,
-    'translation_key': 'charge_state_battery_heater_on',
-    'unique_id': 'VINVINVIN-charge_state_battery_heater_on',
+    'translation_key': 'climate_state_battery_heater',
+    'unique_id': 'VINVINVIN-climate_state_battery_heater',
     'unit_of_measurement': None,
   })
 # ---