iTech Deals offers the iGO Power Trip 10,000mAh Portable Power Bank in Black for $15.99. Coupon code "DNWS2GO" cuts that to $13.99. With free shipping, that's tied with our mention from a month ago, $36 off list, and the lowest total price we could find. It features two USB ports, an LED light, and micro-USB cable. Deal ends September 18.