diff --git a/homeassistant/components/zha/sensor.py b/homeassistant/components/zha/sensor.py
index 4fe96109c46..4ec4c11ef53 100644
--- a/homeassistant/components/zha/sensor.py
+++ b/homeassistant/components/zha/sensor.py
@@ -231,7 +231,7 @@ class Battery(Sensor):
     def formatter(value: int) -> int | None:
         """Return the state of the entity."""
         # per zcl specs battery percent is reported at 200% ¯\_(ツ)_/¯
-        if not isinstance(value, numbers.Number) or value == -1:
+        if not isinstance(value, numbers.Number) or value == -1 or value == 255:
             return None
         value = round(value / 2)
         return value
diff --git a/tests/components/zha/test_sensor.py b/tests/components/zha/test_sensor.py
index 7c11077c55d..59b8bb1293e 100644
--- a/tests/components/zha/test_sensor.py
+++ b/tests/components/zha/test_sensor.py
@@ -260,11 +260,12 @@ async def async_test_powerconfiguration2(hass, cluster, entity_id):
     """Test powerconfiguration/battery sensor."""
     await send_attributes_report(hass, cluster, {33: -1})
     assert_state(hass, entity_id, STATE_UNKNOWN, "%")
-    assert hass.states.get(entity_id).attributes["battery_voltage"] == 2.9
-    assert hass.states.get(entity_id).attributes["battery_quantity"] == 3
-    assert hass.states.get(entity_id).attributes["battery_size"] == "AAA"
-    await send_attributes_report(hass, cluster, {32: 20})
-    assert hass.states.get(entity_id).attributes["battery_voltage"] == 2.0
+
+    await send_attributes_report(hass, cluster, {33: 255})
+    assert_state(hass, entity_id, STATE_UNKNOWN, "%")
+
+    await send_attributes_report(hass, cluster, {33: 98})
+    assert_state(hass, entity_id, "49", "%")
 
 
 async def async_test_device_temperature(hass, cluster, entity_id):