Ah, the great outdoors. Fresh air, the possibility fresh-caught fish, and the notable lack of outlets. Not a problem for the prepared man, though. How to be prepared? With this Kodiak power bank ($42). It’s portable and powerful, weighing in at 9.4 ounces, 2.1 amps of output, and 6000 milliamps of battery capacity. It’s covered in shock and water-resistant heavy-duty silicon wrap, and it can charge anything with a USB cable. Like what? Well, it’ll fully charge your GoPro six times, thus allowing you to film days worth of hula cams.