iTechDeals offers the iGo 1,700mAh Portable USB Battery Pack in Black, model no. BN00315-0003, for $4.99. Coupon code "IGOPWR" cuts the price to $2.99. With free shipping, that's a buck below our mention from yesterday and the lowest total price we've seen. (It's a current low by $3.) It includes a 3.5-foot micro USB Cable and 30-pin connector adapter for Apple devices.