ReTrak ETPB5M5 Premier 5200mAh Power Bank with Built-in Retractable Micro USB Cable, Black

Don't let the juice run out! Staying in touch is essential, but with this powerhouse of energy you'll never be unreachable. The Retrak 5k mAh Power Bank has the capacity to work with all USB devices. It charges any smartphone on the go! Use the retractable cable, and extend it while charging to continue calling, playing, or surfing on your device. The battery stores power for whenever you need it, making the Retrak Power Bank your own personal charging companion.