Hey everyone! So I got my first iPhone 5S on tuesday, I've taken it out of the box and set it up. The battery was at 55% and I know that thats ok, but after about one and a half hour of use I had to charge it. The battery was draining really quickly first few days. In the morning I had 90% and about lunch time I had to charge the iPhone again. And I don't think that I've been using iPhone for some hardwork (about one hour of browsing Internet on wifi, few photos and few messages). The next two days were more or less the same. Now (friday) I'm using my iPhone for 4 hours (almost continuously) and I'm again at 20%. I'm not sure if that is ok, because this is my first iPhone and I don't have much experiences with them. So the question is: Is my battery ok or should I be worried? Thanks