Griffin's PowerBlock reserve is a 2000mA battery that's packing a power plug on one end and a USB port on the other, designed for weary travelers who need to get some more juice from their smartphone. If we're honest, it looks like an enormous chocolate bar, but the sort of not-delicious sort that'll push your iPhone's battery back to 80 percent from cold on a full charge. It'll cost you $59.99 for a version that comes with an USB to Apple connector cable or $49.99 if you'd rather supply your own.
Gallery: Griffin PowerBlock Reserve Hands On at CES 2012
