USB-C charging is a nice idea. However having to carry “box-o-power” is not optimal I think, you might as well carry your charger instead.
The optimal user experience in my view is:
- Having 2 charge ports, one USB-C (max 100W), another for faster charging
- USB-PD booster is hidden inside the board / is part of the BMS
- USB-C can be used for charging and as power bank (for phone / laptop)
Interesting to see what you come up with! 