I find it wryly amusing that the first phone I ever owned with a sealed-in, non-swappable battery -- the iPhone, of course -- was also the first phone with a battery life so short as to warrant the ability to swap the battery. Hence the commercial popularity of battery cases like the various Mophie products. These are particularly handy when travelling, as the need for a phone when navigating foreign climes is greater and access to charging points is less frequent.
That's why, in December 2011, I ordered two Mophie Juice Pack Plus battery cases for the iPhone 4 handsets my wife and I were about to take on a vacation to America. The Mophie models have plenty
