@arrowshooter - Apple always says that not authorized dealer baloney. Any tech can swap out a battery. It was my iPhone 6 when I had Batteries Plus replace the battery because the phone was awfully slow performance wise. After replacing the battery it was returned to the performance like it had when I bought it. I gave the phone to my wife and bought a new one since she had an older android phone and the iPhone is (in my old guy opinion) much easier to use for seniors. In fact, the kids call it an old folks phone here. If I had the choice new phone or replace battery it's a no brainer -- get a new phone. It has more memory, better processor and will be faster for doing the different smart phone tasks.