I ordered the battery and a set of tools to do so. The tool kit would not have been necessary because a screwdriver and the suckers are already attached to the battery. The installation is quite simple; Instructions can be found on the Internet yes. When battery itself is nothing to it. But I do not see as a disadvantage. Battery performance is again, as in the new device, and especially the iPhone also runs on a battery charge level of 20%. In a real cheap battery that is not in my experience.
