Waterproof and shockproof, the Kodiak is the portable rugged power bank for any environment. Most portable batteries can’t charge a tablet but with 6000 milliamps of power and switchable 2.1-amp output, the Kodiak takes care of your tablet, phone, POV camera, e-reader, wireless headphones, GPS, even some Bluetooth speakers. The Kodiak also lets you know when it is "hungry" with the battery level indicator button. Just push it and the power level indicator (or "Hunger Meter") lights up to show you how much juice you have left. It weighs in at a paltry 8.96 ounces which makes you feel strong carrying that much power.