Super charger for smartphone or tablet at any time and every place. ModelSY-B30, SY -B50, SY –B80Size:72*99.6*18.5 mmCapacity3000mAh,5000 mAhInput voltage5.0VOutput voltage5.0VCycle life>=500 timesOperating temperature10°C~40°CBattery typeLithium polymer batteryOutput current500mA,1000mAStandardGb4706.18-2005 Power banker_B50