added battery thing but it doesnt work

Services/BatteryManager.qml

@@ -0,0 +1,23 @@
+pragma Singleton
+import QtQuick
+import Quickshell
+import Quickshell.Services.UPower
+
+Singleton {
+  id: root
+
+  property UPowerDevice battery: Upower.displayDevice
+  property bool batteryInUse: root.batteryPresent && root.batteryLaptop
+  property bool batteryLaptop: root.battery.isLaptopBattery
+  property double batteryPercentage: root.battery.percentage
+  property bool batteryPresent: root.battery.ready
+
+  function getBatteryIcon() {
+	let battery = root.battery;
+	if (battery.state = UpowerDeviceState.Charging) {
+	  return "󰂄";
+	}
+	if (battery.state = UpowerDeviceState.Discharging) {
+	}
+  }
+}

Services/qmldir

@@ -4,3 +4,4 @@ singleton NotificationManager 1.0 NotificationManager.qml
 singleton WorkspaceManager 1.0 WorkspaceManager.qml
 singleton BluetoothManager 1.0 BluetoothManager.qml
 singleton MprisManager 1.0 MprisManager.qml
+singleton BatteryManager 1.0 BatteryManager.qml