Cell type: polymer Li-ion; Cell output voltage: DC5V±0.2V; output current: ≤500mA(0.5A); input voltage: 5.5V±0.5V; input current: ≤1000mA(1A); Capacity: 1900mAh; Duration of charge: 3-6 hours; cycle life: >500 times; working temperature:-10℃—40℃;storage and transport Temperature:-20℃—50℃;Volume: 114x66x20mm; weight: 193g