The first thing you’ll notice about Juice Pack Pro is that it’s huge, and pictures don’t do it justice—this case is a brick. At 1.02” thick, it adds two-thirds of an inch or almost twice the thickness to an iPhone, and the weight is also substantial. It’ll still fit in average jeans pockets, but those who wear skinny jeans or other equally tight pants are out of luck. Maybe that’s why Mophie includes a detachable…