The case utilizes a bit of 3D printing and three affordable components—a lithium ion battery, USB breakout, and power cell—to not only store your phone in style but also charge it. The total cost to build the charging station itself is less than $40. NPOOLE says this is just the first iteration; he plans on adding cooling fans and extra batteries to the next revision. In the meantime you can download the design from Github if you want to 3D-print your own, and check out the original source below for more info. Source: TheNextWeb