iPhone 5 power users will be happy to know that Mophie continues to improve their Juice Pack iPhone cases with built-in battery backup. The latest model, the Juice Pack Plus for iPhone 5 packs a 2100 mAh battery inside, exceeding the capacity of all previous models. So what does a battery this size do for your iPhone's longevity?
How about a full 120 percent extra battery power from the stock, built-in power pack on the iPhone 5? No need to do the math, essentially the Mophie case more than doubles your battery life, adding up to 10 additional hours of 3G talk time, 10 additional hours of LTE data time, and 12 extra hours of video playback.