Polaroid External Battery Pack for All Smartphones - Retail Packaging - Gold Pack And Go - The lightweight and slim design is easy to transport and store. Half Full - The four-light LED power meter shows when the Slim Power Pack needs to be charged. Super Powers - The 5,200 mAh Slim Power Pack can fully charge a smartphone three times on one use (based on an average smartphone battery of 1,500 mAh). Light Up - Pressing the power button twice activates the built-in LED flashlight. Technical Specs - 5200 mAh. Input DC5V/0.8A. Output DC5V/1A. (included Micro USB cable).