Portable electronic devices are only as useful as long as they have power, and it's easy to underestimate just how dependent we are on these devices --- until the battery runs out of juice. Then it becomes painfully clear how frustrating a dead battery can be. Choiix has created the Power Fort to combat exactly this type of situation. It provides a rechargeable power supply for just about any type of portable electronics. Let's put this power device to the test to see how useful it really is.