Getting your player ready...
In these days of always-on devices, there’s nothing worse than a dead gadget. New bags by Power- bag promise portable charging for multiple devices on the go.
The bags, which will start at $140, come with built-in batteries to charge multiple USB devices. The charging system is light enough not to weigh you down and powerful enough to charge almost any device, including tablets, iPhones, e-readers and Bluetooth devices — essentially anything powered with a USB cable.
Find them at .
John Biggs, The New York Times
