Sinedya via eBay offers the 12,000mAh USB External Battery Pack for $10.59 plus $1.40 for shipping. That's tied with last week's mention as the lowest total price we've seen for any 12,000mAh portable battery charger. (It's a current price low for such a battery pack by $5.) It comes with several adapters suitable for most types of charging ports, including iPhone, iPad, and iPod.