14.2 ( l ) x 6.8 ( w ) x 2.3 ( h ) Aluminum Battery type: lithium polymer battery Capacity: 8000mAh Life cycle: more than 500 times Efficiency: 75-80% Input current: DC 5V/2.1A DC 9V/2A DC 12V/1.5A Output current: DC 5V/2.1A DC 9V/2A DC 12V/1.5A Discharge time: 5-6 hours Recharge time: 4.5-5.5 hours