I’ve been a huge fan of powerbanks for years. They kind of changed how I think about using battery powered devices. Suddenly you’re not limited to the built in battery or having to sit next to the power outlet while it charges.
I ordered a new powerbank in the beginning of December. It is made by Mophie, it’s just called XXL. The main feature of it is that it is a real USB-C powerbank. You can charge it with your MacBook Pro USB-C power brick and it will take advantage of the power of it. And you can also charge anything USB-C, like the Swithc or even a MacBook.
It also comes with a A style port.
What I love about this thing is that it charges from empty to full way faster than anyhting I have owned. And it can charge anything USB I own. It have made by travel powerbrick situation a lot simpler.