On sale! (normally $49) The Hotway ProBox 10400mAh power bank is compatible with smartphones, tablets, iPads and iPhones. It features dual USB ports delivery a maximum of 12W (5V/2.4A) output, allowing you to charge two devices simultaneously while you're on the move. Designed to use high quality Japanese battery cells, the Hotway ProBox is extremely reliable and features short circuit protection, over-discharge/over-charge protection, over-heat protection and over-current protection.