Nova Tech US via Amazon offers the DBPower 26,400mAh Laptop Portable Battery Pack for $99.99. Coupon code "ER2ZZ8PR" drops the price to $68.99. With free shipping, that's $11 under our mention from six days ago, $91 off, and the lowest price we could find. It features a 2-prong AC outlet and two USB charging ports. Deal ends November 17.