When you are on the go and your cell phone runs out of juice, it's always frustrating not to be able to use it. Power users will carry their chargers, but finding outlets isn't always easy. The charging pen comes to the rescue. This is a fully working ballpoint pen that can also function as a cell phone charger.

It needs only one AA battery to provide your phone with an extra 100 minutes of use. It comes with a series of adapters for different mobile phone companies, such as Nokia, Samsung, Sony Ericsson and more.

The One Battery Mobile Charger Pen is available through the Gadget4all store for $19.

[via GeekAlerts]