[NTLK] Improved 3d Printed Battery Case

[Elias Basse]

Many Thanks Grant,

I am wanting to keep as much publicly available to users as possible and I
think GitHub was a great suggestion from the list.

I am ordering prototype parts tonight and should make a lot of progress
this week on the USBC battery.

With this and Matthias' new project I won't have to adapt adapters to link
or charge!

Best Regards,

Elias