eThings&reg; Universal Power Backup Bank - Adds 4 Full Charges to Your Smartphone 7500mAh External Battery Capacity with Dual USB Chargers for Smartphones and Tablets Guaranteed ultra-high capacity 7500mAh rechargeable high-capacity portable backup charger Adds 4 Full charges to your smartphone, or adds 2 full chargers to your tablet. Built-in high capacity and quality lithium-ion polymer battery, long battery lifespan. convenient to carry innovative shaped design, slips easily into any pocket or bag. Compatible with multiple devices including iPhone 6 ,Sony, iPad2/3/4/mini, all iPhone versions, all iPod & iPod Touch versions, Motorola / HTC Android Phones, Blackberry, Kindle HDX, Samsung Galaxy, Sony PSP & many others.