Battery is original, can be installed without problems. How often the battery is already loaded, I have not checked with a software, at least it keeps much longer than my old battery. There are departures since I after considerable use the battery only 24-28 hours (4 hours of use, 20-24 hours standby) can use before I have to charge it again. But that is also the Iphone and battery with only 1430 mAh.