EPCTEK&reg;Blue External Battery Backup Charger for iPhone 5,4S, 4, iPad 4, 3, 2, Mini, iPods, Samsung Galaxy S4, S3, S2, Note 2, Note 8, Tab 3;HTC One, EVO, Thunderbolt, Incredible, Droid DNA, Motorola ATRIX, Droid, Google Glass, Nexus 4, Nexus 7, 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.