diff --git a/client/Nightr/reference.d.ts b/client/Nightr/reference.d.ts
new file mode 100644
index 0000000..95aa993
--- /dev/null
+++ b/client/Nightr/reference.d.ts
@@ -0,0 +1,3 @@
+/// <reference path="./node_modules/tns-platform-declarations/ios.d.ts" />
+/// <reference path="./node_modules/tns-platform-declarations/android.d.ts" />
+/// <reference path="./node_modules/tns-platform-declarations/android-24.d.ts" />
diff --git a/client/Nightr/src/app/services/my-battery-info.service.ts b/client/Nightr/src/app/services/my-battery-info.service.ts
index 2906c36..209807f 100644
--- a/client/Nightr/src/app/services/my-battery-info.service.ts
+++ b/client/Nightr/src/app/services/my-battery-info.service.ts
@@ -7,6 +7,18 @@ import { ios as iosUtils } from "tns-core-modules/utils/utils";
 })
 export class MyBatteryInfoService {
 
+
+    /* public getBatteryLife() {
+            // use tns-platform-dclarations to access native APIs (e.g. android.content.Intent)
+            applicationModule.android.registerBroadcastReceiver(
+                android.content.Intent.ACTION_BATTERY_CHANGED,
+                (androidContext, intent) => {
+                    const level = intent.getIntExtra(android.os.BatteryManager.EXTRA_LEVEL, -1);
+                    const scale = intent.getIntExtra(android.os.BatteryManager.EXTRA_SCALE, -1);
+                    const percent = (level / scale) * 100.0;
+                    vm.set("batteryLife", percent.toString());
+                });
+    } */
     /*public getBatteryLife() {
     if (iosApp){
       iosUtils.getter(UIDevice, UIDevice.currentDevice).batteryMonitoringEnabled = true;