diff --git a/homeassistant/components/fronius/const.py b/homeassistant/components/fronius/const.py
index 0b76daa18a..24492340d6 100644
--- a/homeassistant/components/fronius/const.py
+++ b/homeassistant/components/fronius/const.py
@@ -74,6 +74,7 @@ class MeterLocationCodeOption(StrEnum):
     FEED_IN = "feed_in"
     CONSUMPTION_PATH = "consumption_path"
     GENERATOR = "external_generator"
+    EXT_BATTERY = "external_battery"
     SUBLOAD = "subload"
 
 
@@ -90,6 +91,8 @@ def get_meter_location_description(code: StateType) -> MeterLocationCodeOption |
             return MeterLocationCodeOption.CONSUMPTION_PATH
         case 3:
             return MeterLocationCodeOption.GENERATOR
+        case 4:
+            return MeterLocationCodeOption.EXT_BATTERY
         case _ as _code if 256 <= _code <= 511:
             return MeterLocationCodeOption.SUBLOAD
     return None
diff --git a/homeassistant/components/fronius/strings.json b/homeassistant/components/fronius/strings.json
index b862a45c12..f86bbf8602 100644
--- a/homeassistant/components/fronius/strings.json
+++ b/homeassistant/components/fronius/strings.json
@@ -135,6 +135,7 @@
           "feed_in": "Grid interconnection point",
           "consumption_path": "Consumption path",
           "external_generator": "External generator",
+          "external_battery": "External battery",
           "subload": "Subload"
         }
       },