Description: External Lithium-Ion Battery Pack for laptops or similar devices. Cell: Lithium-ion cell(Imported from LG, Korea) Battery Capacity: 60Wh Battery Output Voltage: DC9V/12V Battery Output Current: 2A Charge Time: 3 hours(3.5 hours maximum charge) Cycle Life: more than 500 times Charge Temperature: 0°C~40°C Discharge Temperature: -20°C~60°C(Recomend -10°C~50°C) Storage Temperature: -10°C~40°C(Recomend -5°C~35°C) Battey Size: 157mmX76mmX22mm Battery Weight: 420g Battery Gauge: 5 level LED indicator Battery Protection: over-charge/over-discharge/excess current/short circuit