Monoprice IP65 Rugged Power Bank, 10050 mAh LG Lithium Ion Cell (114576) Battery Capacity: The 10050mAh battery capacity is enough to fully charge an iPhone 6 up to 4 times, ensuring that you can keep your phone fully charged over a long weekend of fun and adventure! IP65 Rating: The IP65 ingress protection rating means that this power bank is dust tight and can be safely exposed to direct waters jets, so a little rain or dirt isn't going phase it a bit. Rugged Design: The premium aluminum case makes this power bank ready for even the roughest duty. You're not going to worry about dropping it and cracking open the case, like can happen with an ordinary plastic-cased power bank. Toss it in your backpack and trust that it will be ready for use when you need it. Monoprice's rugged design and rigid quality control standards deliver high quality products at fair prices. Compatible with smartphones, tablets, and other devices