If you've ever fancied recharging your batteries by means of USB, this is for you. I'm getting these AA batteries for my sister for Christmas. She races through packs every few days, MP3, camera, there's always an excuse. But these little beauties could be her saviour! Simply flip the lid off the batteries and plug them in! They only pack the punch of AAA batteries, but this is because the USB connector takes up space and once the lid is added, it fits snugly into a space designed for AA batteries. Very nice idea from Moxia, and I hope to see it shipping soon. Again, with lots of good things, this is still only a concept, even though the creators reckon that they'll be seeing this in mass production before long.