reliable portable mobile power portable rapid charger long cycle life high efficiency of power conversion * Battery type: Lithium Battery * Size: 90x62x16(mm) * Weight: 90.2g * Capacity: 2800mAh * Input: 500mA MAX * Output: 800mA MAX * Cycle life: "500 times * Operating Temperature: -10 °C -40 °C• Transport temperature: -20 °C -50 °C * Charging time: 4 hours.Bring way: portable and convenient ...