As one of its daily deals, A4C offers the Belkin 3,000mAh Travel Rockstar Battery Pack / Surge Protector for $14.99 with free shipping. That's $2 under our mention from a month ago and the lowest price we've seen. (It's also the best deal we could find today by $5). It features two outlets, USB, and a 615-joule surge protection rating. Deal ends today.