[nakedrobot2]

This is cool, and I love the coming wave of sexy batteries :)

My main gripe is this: ONLY USB output? Why?

I currently have a "noname chinese crapgadget" battery that can power my usb devices, but also has 9V and 12V output. Much more versatile!

Also, and this is more of a stretch, I know - being able to power a macbook would make this a FAR more universal kind of battery.

EDIT: Oh! I'm sorry, it seems that you can charge your macbook.... https://trontium.com/specs/ But how does that work?

Good job with the site design and product design, and I wish you success with your crowdfunding! :-)

[akx]

It's not exactly USB output, it's USB-PD (USB Power Delivery), which is a different beast altogether.

http://en.wikipedia.org/wiki/USB#USB_Power_Delivery

[nakedrobot2]

Okaaaaaaay, and how to you connect a wire from that USB port to your magsafe port on your macbook?

[bryanlarsen]

with the appropriate adapter cable. https://trontium.com/answers/