The first phone and tablet portable power bank rugged enough to be called Survivor. With three go-all-day charging capacities available and rugged, go-anywhere construction, Survivor Rugged Power Bank is the ultimate backup battery for smartphones and tablets. Tested to Military Standard 810G, Survivor Power Bank provides up to 6.6 foot drop protection and impact resistant defense from falls on hard surfaces like concrete. It's also designed for an IP66 rating to protect against water damage and dust particles. A self-sealing flap keeps the battery's charge and power ports clean and dry at all times. Recharges via micro-USB.