diff --git a/custom_components/sws12500/const.py b/custom_components/sws12500/const.py
index 1819c7f..b790c88 100644
--- a/custom_components/sws12500/const.py
+++ b/custom_components/sws12500/const.py
@@ -63,6 +63,7 @@ OUTSIDE_TEMP: Final = "outside_temp"
 DEW_POINT: Final = "dew_point"
 OUTSIDE_HUMIDITY: Final = "outside_humidity"
 OUTSIDE_CONNECTION: Final = "outside_connection"
+OUTSIDE_BATTERY: Final = "outside_battery"
 WIND_SPEED: Final = "wind_speed"
 WIND_GUST: Final = "wind_gust"
 WIND_DIR: Final = "wind_dir"
@@ -137,6 +138,7 @@ REMAP_WSLINK_ITEMS: dict = {
     "t1rainwy": WEEKLY_RAIN,
     "t1rainmth": MONTHLY_RAIN,
     "t1rainyr": YEARLY_RAIN,
+    "t1bat": OUTSIDE_BATTERY,
 }
 
 # TODO: Add more sensors
@@ -176,7 +178,6 @@ class UnitOfDir(StrEnum):
     NNW = "nnw"
     N = "n"
 
-
 AZIMUT: list[UnitOfDir] = [
     UnitOfDir.NNE,
     UnitOfDir.NE,
@@ -195,3 +196,16 @@ AZIMUT: list[UnitOfDir] = [
     UnitOfDir.NNW,
     UnitOfDir.N,
 ]
+
+class UnitOfBat(StrEnum):
+    """Battery level unit of measure."""
+
+    LOW = "low"
+    NORMAL = "normal"
+    UNKNOWN = "unknown"
+
+BATTERY_LEVEL: list[UnitOfBat] = [
+    UnitOfBat.LOW,
+    UnitOfBat.NORMAL,
+    UnitOfBat.UNKNOWN,
+]
diff --git a/custom_components/sws12500/sensors_wslink.py b/custom_components/sws12500/sensors_wslink.py
index dc09aa9..50f8b2a 100644
--- a/custom_components/sws12500/sensors_wslink.py
+++ b/custom_components/sws12500/sensors_wslink.py
@@ -29,6 +29,7 @@ from .const import (
     HEAT_INDEX,
     INDOOR_HUMIDITY,
     INDOOR_TEMP,
+    OUTSIDE_BATTERY,
     OUTSIDE_HUMIDITY,
     OUTSIDE_TEMP,
     RAIN,
@@ -45,7 +46,7 @@ from .const import (
     WEEKLY_RAIN,
 )
 from .sensors_common import WeatherSensorEntityDescription
-from .utils import wind_dir_to_text
+from .utils import battery_level_to_text, wind_dir_to_text
 
 SENSOR_TYPES_WSLINK: tuple[WeatherSensorEntityDescription, ...] = (
     WeatherSensorEntityDescription(
@@ -303,4 +304,12 @@ SENSOR_TYPES_WSLINK: tuple[WeatherSensorEntityDescription, ...] = (
         translation_key=CHILL_INDEX,
         value_fn=lambda data: cast("int", data),
     ),
+    WeatherSensorEntityDescription(
+        key=OUTSIDE_BATTERY,
+        name="Outside Battery",
+        icon="mdi:battery",
+        device_class=SensorDeviceClass.ENUM,
+        value_fn=lambda data: battery_level_to_text(int(data)) if data is not None and str(data).isdigit() else "unknown",
+        translation_key=OUTSIDE_BATTERY,
+    ),
 )
diff --git a/custom_components/sws12500/strings.json b/custom_components/sws12500/strings.json
index fda0f39..7260ffa 100644
--- a/custom_components/sws12500/strings.json
+++ b/custom_components/sws12500/strings.json
@@ -135,6 +135,7 @@
       }
     }
   },
+  "outside_battery": { "name": "Outside battery level" },
   "notify": {
     "added": {
       "title": "New sensors for SWS 12500 found.",
diff --git a/custom_components/sws12500/translations/cs.json b/custom_components/sws12500/translations/cs.json
index e024ec3..e6009ef 100644
--- a/custom_components/sws12500/translations/cs.json
+++ b/custom_components/sws12500/translations/cs.json
@@ -139,6 +139,7 @@
       }
     }
   },
+  "outside_battery": { "name": "Vnější úroveň nabití baterie" },
   "notify": {
     "added": {
       "title": "Nalezeny nové senzory pro SWS 12500.",
diff --git a/custom_components/sws12500/translations/en.json b/custom_components/sws12500/translations/en.json
index e0ce1a6..f89b307 100644
--- a/custom_components/sws12500/translations/en.json
+++ b/custom_components/sws12500/translations/en.json
@@ -136,7 +136,8 @@
           "nw": "NW",
           "nnw": "NNW"
         }
-      }
+      },
+      "outside_battery": { "name": "Outside battery level" }
     }
   },
   "notify": {
diff --git a/custom_components/sws12500/utils.py b/custom_components/sws12500/utils.py
index 30a667b..c78f63f 100644
--- a/custom_components/sws12500/utils.py
+++ b/custom_components/sws12500/utils.py
@@ -20,6 +20,7 @@ from homeassistant.helpers.translation import async_get_translations
 
 from .const import (
     AZIMUT,
+    BATTERY_LEVEL,
     DATABASE_PATH,
     DEV_DBG,
     OUTSIDE_HUMIDITY,
@@ -29,6 +30,7 @@ from .const import (
     SENSORS_TO_LOAD,
     WIND_SPEED,
     UnitOfDir,
+    UnitOfBat,
 )
 
 _LOGGER = logging.getLogger(__name__)
@@ -181,6 +183,32 @@ def wind_dir_to_text(deg: float) -> UnitOfDir | None:
     return None
 
 
+def battery_level_to_text(battery: int) -> UnitOfBat:
+    """Return battery level in text representation.
+
+    Returns UnitOfBat
+    """
+
+    return {
+        0: UnitOfBat.LOW,
+        1: UnitOfBat.NORMAL,
+    }.get(battery, UnitOfBat.UNKNOWN)
+
+
+def battery_level_to_icon(battery: UnitOfBat) -> str:
+    """Return battery level in icon representation.
+
+    Returns str
+    """
+
+    icons = {
+        UnitOfBat.LOW: "mdi:battery-alert",
+        UnitOfBat.NORMAL: "mdi:battery",
+    }
+
+    return icons.get(battery, "mdi:battery-unknown")
+
+
 def fahrenheit_to_celsius(fahrenheit: float) -> float:
     """Convert Fahrenheit to Celsius."""
     return (fahrenheit - 32) * 5.0 / 9.0
@@ -267,10 +295,12 @@ def long_term_units_in_statistics_meta():
     db = conn.cursor()
 
     try:
-        db.execute("""
+        db.execute(
+            """
             SELECT statistic_id, unit_of_measurement from statistics_meta
             WHERE statistic_id LIKE 'sensor.weather_station_sws%'
-         """)
+         """
+        )
         rows = db.fetchall()
         sensor_units = {
             statistic_id: f"{statistic_id} ({unit})" for statistic_id, unit in rows
@@ -286,8 +316,8 @@ def long_term_units_in_statistics_meta():
 
 async def migrate_data(hass: HomeAssistant, sensor_id: str | None = None) -> bool:
     """Migrate data from mm/d to mm."""
-    
-    _LOGGER.debug("Sensor %s is required for data migration", sensor_id) 
+
+    _LOGGER.debug("Sensor %s is required for data migration", sensor_id)
     updated_rows = 0
 
     if not Path(DATABASE_PATH).exists():