What makes the Powerbank Pen unique? At the front end is a quality twist action ballpoint pen while at the other end is a revolutionary cylindrical lithium-polymer cell, neatly stored inside the barrel of the pen. When your mobile phone or tablet needs an extra boost, just pull the cap off, plug in your device and turn on the Powerbank. It’s that simple! With the Powerbank Pen, emergency power is always accessible, conveniently stored right in your pocket, backpack, briefcase or pocketbook.