Courage to repair itself!

Everyone who uses his intense iPhone is for a good year before the problem that the battery is no longer really wants. (For me it was almost 300 cycles) The premium reseller you trust responsible for the exchange usually about 50 (in my case Gravis). The question is obvious: Is it worth it to save 25 and make it yourself?
Quite simply, yes. If you have the right tool already there, you get a battery already for under 10. Since that was not the case with me, I have accessed at this set and successfully exchanged with the help of matching videos of ifixit.com the battery. The screwdrivers are quite well made, you have to watch something on the plastic parts. I can About the battery itself of course far not much to say except that everything works so far. Super practical is also the magnetic mat for screws and small parts that came.
My conclusion, courage to repair itself. It can not go wrong really much except to behave extremely gross motor.