Mophie finally released an extra battery pack for the iPhone 5. It only took them 6 months! The Mophie juice pack will increase your battery life by up to 80% and also functions as a protective case. For only $80 its the best bang for your buck if you were already in the market for a case. I used a Mophie juice pack for my iPhone 4s when I went to Coachella and it lasted for the first two days. This gadget is perfect for long trips or businesses conferences where you probably won’t have a place to charge your phone.