If 2007's Bracelet Battery from Thanko didn't match your lifestyle, there's a good chance 2010's model won't either. That's because it looks identical to the prior model, sporting the kind of style that would go perfectly with a Caped Crusader costume and virtually nothing else. New with this year's model is an adapter cable that enables it to work with an even greater variety of devices, a 1,500mAh lithium-ion battery, and (wonder of wonders) an on/off switch. Yours for just ¥3,980 -- about $40.
Thanko's Bracelet Battery is back, better and geekier than ever
All products recommended by Engadget are selected by our editorial team, independent of our parent company. Some of our stories include affiliate links. If you buy something through one of these links, we may earn an affiliate commission. All prices are correct at the time of publishing.