How it works is that it connects to USB ports and power plugs as per normal, but once your phone is done charging, the power is then redirected to the hidden battery to juice up and store some power. Given that the Jump cable weighs only 40 grams, it’s small enough to fit into your pocket so that you can bring to work with you or take it with you on the go to locations where there might not necessarily have a power outlet for you to charge your phone with. The good news is that the Jump cable will be available as a Lightning cable for iOS users, or as a microUSB cable for Android, BlackBerry, or Windows Phone users, and will cost $40 if you were to pledge to its Kickstarter campaign, otherwise expect to fork out around $50 for it when it becomes available later in May.