diff --git a/homeassistant/components/system_bridge/binary_sensor.py b/homeassistant/components/system_bridge/binary_sensor.py
index a622a3a925a..7681a428cca 100644
--- a/homeassistant/components/system_bridge/binary_sensor.py
+++ b/homeassistant/components/system_bridge/binary_sensor.py
@@ -41,7 +41,7 @@ BATTERY_BINARY_SENSOR_TYPES: tuple[SystemBridgeBinarySensorEntityDescription, ..
         key="battery_is_charging",
         name="Battery Is Charging",
         device_class=DEVICE_CLASS_BATTERY_CHARGING,
-        value=lambda bridge: bridge.information.updates.available,
+        value=lambda bridge: bridge.battery.isCharging,
     ),
 )