Portable Emergency Mobile Charger forSAMSUNG with 1900mah capacity 1.Baterry type: Polymer battery 2.Size:67x62x15(mm) 3.Weight:58g 4.Capacity:1900mAh 5.Input: 800mah 6.Output: 500mA max 7.Charge time:2-4hours 7.Guarantee:>500times All certificated CE\FC\RoHS\ISO 9001:2000