android.permission.BATTERY_STATS api

@Override
public void onCreate() {
    BroadcastReceiver batteryReceiver = new BroadcastReceiver() {
        int scale = -1;
        int level = -1;
        int voltage = -1;
        int temp = -1;
        @Override
        public void onReceive(Context context,Intent intent) {
            level = intent.getIntextra(Batterymanager.EXTRA_LEVEL,-1);
            scale = intent.getIntextra(Batterymanager.EXTRA_SCALE,-1);
            temp = intent.getIntextra(Batterymanager.EXTRA_TEMPERATURE,-1);
            voltage = intent.getIntextra(Batterymanager.EXTRA_VOLTAGE,-1);
            Log.e("Batterymanager","level is "+level+"/"+scale+",temp is "+temp+",voltage is "+voltagE);
        }
    };
    IntentFilter filter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
    registerReceiver(batteryReceiver,filter);
}