I have a Fascinate with standard Android on it. I also have the QR Droid app for scanning QR's. When I go to the settings - about phone - battery, it always shows that the QR Droid is running and using battery. Even when the app has not been open and I have used Advanced Task Killer to make sure it is closed. I unplugged the phone from the charger about 20 minutes ago and the battery usage shows QR Droid as using 10% (it's usually higher). Should it be using my battery even when all indications are that it's closed?