EPCTEK&reg;Green External Battery Backup Charger for iPhone 5,4S, 4, iPad 4, 3, 2, Mini, iPods, Samsung Galaxy S4, S3, S2,Thunderbolt, Incredible, Droid DNA, Motorola ATRIX, Droid, Google Glass, Nexus 4, Nexus 7, Nexus 10 100% Brand New Input: DC 5V, 1.0A Output:DC 5.0V,1.0A Capacity:3.7V/2600mAh Compatible Brand: For Apple,Samsung, LG ,HTC etc.