EZOPower 5600mah Ultra Slim External Battery Charger/Power Bank for HTC First, One, Nokia Lumia 520, Lumia 620, Lumia 925, Lumia 928, Lumia 521, Samsung Galaxy Exhibit (2013), Galaxy Mega 6.3, Galaxy S IV / S4 & More Universal, convenient, portable, and compact external rechargable high capacity 5600mAh back-up battery Includes charging cable + interchangable charging tips to charge a variety of devices 3 LED light above power button indicate battery capacity, as well as active charging Output 1(S): USB ~ 5V 2100mA; Micro-USB Input: 5V 1A, USB Output I: 5V 2.1A (charge iPad, iphone, smartphone, tablet), USB Output S: 5V 2.1A (charge Samsung tablet, iphone, smartphone, tablet), Maximum output current for Output I & S: 2.1A, Weight: 153.2g, Dimension: 127 x 72 x 12 mm Compatible with most portable devices (Mobile Phones, Tablet PC, Music Players, Portable Gaming Devices, Digital Readers, Digital Camera etc.)