Mophie’s newest backup battery, the mophie juice pack powerstation® duo, can charge almost any USB-chargeable device. It has a 6000mAh battery and two USB ports for charging two devices at once. It can deliver 2.1A, so you can even charge a tablet while you charge another device (but not two tablets at once). It measures 2.28″ X 4.30″ X 0.78″ and weighs one pound, and it has a black soft-touch exterior with a metal band around the sides. The juice pack powerstation duo charges via USB, but it doesn’t do pass-through charging. You can recharge this juice pack 500 cycles. The mophie juice pack powerstation duo is $99.95 and is available now from mophie.