Hello, I have just yesterday taken purchase of a new Galaxy s7 edge which is exciting. However, the battery is running down quickly and I can't work out why. I have just recharged and looked in settings at battery. It is telling me I will get 10 hours of usage. Can this be right? I have tried all the usual tricks. when I looked at what was taking up the battery life before I restarted it was 'cell standby' which I don't really understand. That had taken up 50%. Now I've restarted the phone and of course nothing is taking up the battery but it still predicts only ten hours of usage. Can anyone shed any light on this? Any help gratefully received.