A lot of feature-packed pens have been featured on this site, but none of them have had the killer app that makes the Power Pen special. According to the people at Firebox, the Power Pen is the world’s first to feature a built-in designated smartphone battery, for those emergency situations when you don’t have time to charge up your phone.
The Power Pen’s battery connects to your iPhone or Android smartphone through a lightning or microUSB connector, and provides an instant, conveniently portable solution to the perennial problem of sapped smartphone batteries. And in addition to its writing and phone-charging duties, it also includes a stylus, on the off chance that you’re one of those people who uses a stylus.
The Power Pen is available from Firebox here for about $40. And in the gallery below you can see a few photos of the product that will give you an idea of how easy it would be to carry around at all times.