Anker Astro E1 5200mAh UN - White Charge your phone on the go. PowerIQ Detects your device. Delivers the fastest charge. Exclusive to Anker, PowerIQ amp-adjustment technology intelligently identifies your device to deliver its fastest possible charge. High Capacity Charge your Apple or Android smartphone one to two times while on the move. You can even charge an iPad mini to about 80%! Incredibly Compact This thing is remarkably small. About the same size as a small candy bar, you simply will not find a more portable powerpack. Superior Quality We use only premium battery cells, together with the most advanced materials and cutting-edge technology, to ensure complete safety.