The Best One I have bought this battery few days ago and after that I have checked its performance thoroughly. 1st of all I want to say that whatever is mentioned on flipkart is correct. 1. it took little less than 2 hours to charge completely. 2. It is original Iphone 5s which has the battery capacity of 1560 mAh. 3. My phone lasts for the whole day with an average use.