Open box. Original packaging! About This Product Compatibility: Universal support for devices capable of charging via USB port. Take Samsung’s Fast Charge technology on the go with the new 5200mAh Fast Charge Battery Pack. This battery pack allows you to charge your Fast Charge-compatible Samsung device from 0 to 50% in 30 minutes*. However, with a universal USB port output, you can charge other smartphones, tablets or other electronics capable of charging via USB. The battery pack’s 5200mAh capacity can be recharged over and over. When fully powered, the battery pack holds enough juice to charge most of the latest smartphones up to at least 1 ½ times*