Power Pack For Samsung i9300 1.2600mAh Capacity 2.Lithium Polymer Cells ... Back up battery case power pack for Glaxy3 i9300 Features:1.material:Lithium-ion,2.Capacity:2600mAh, ... 500mah, output:5V,600mah4.Compatible brand :for samsungGlaxy3 I9300,5.Charging time:3-4 hours,6.use standby ... external power adapter, can be synchronized to charge your phone Compatibility, common to most cell phones and digital ...