By battery standards, the L.E.D. Portable Charger looks and feels like a premium product, thanks to its black or silver aluminum body. It’s the right kind of dense—heavy without being cumbersome. At the ends, the bar is almost square, measuring 0.83” by 0.87”. One side houses the Micro-USB input and 2A USB output, while the other is home to a touch-sensitive button that allows you to toggle through three levels of brightness,…