I have seen some pretty small mobile phone battery chargers before, and the smallest has been the one by Devotec which is a little larger than a quarter. I believe the Devotec one is a Kickstarter project, but the Tarot is available now. The Tarot, which I can only assume is named after the cards, is about the size of a credit card. It is somewhat thick at 0.28, which is … [Read more...] about Tarot is the world’s smallest smartphone battery charger