Peng Kairui888 2 in 1 Battery Charging Cradle Dual Dock Station with Micro USB Data Sync for Samsung Galaxy Mega 6.3 i9200 Black Portable Design - Convenient for travelers and business users. Support charging 2nd battery and phone at the same time. Made of piano lacquer in front, rubberized of back , comfortable touch feel and exquisite appearance. Cover-mate Case Compatible design, the cradle is with a cover which can be taken on or off. Output: when charge phone or 2nd battery,the output is 1000mA, When charge phone and 2nd battery,the output is 500mA each port.