Portable power bank for Tablet PC and Mobile Phones and MP3/MP4 Technical Specification: Replaceable 18650 battery Battery type:18650 Li-battery Capacity:5200mAh Size: 97.6*61*26.6mm Weight: 152g(with battery) Output Voltage: DC 5V Output Current: 1000mA or 1500mA (2 port) Input Voltage: 5V/1000mA