This cable lets you charge your Surface Pro or Laptop from a USB-C battery

Earlier this year, I wrote about the long-awaited Surface USB-C adapter that finally added a versatile USB-C port to Microsoft’s Surface Pro and Surface Laptop computers. The adapter works as advertised, but it’s large, heavy, clumsy, and expensive. I outlined three ways that Microsoft could have designed a better cable, hoping that the company would listen.
Turns out, someone was listening to at least one of those suggestions because you can now purchase a cable that lets you direc