I would assume you would keep the BMS in the middle in the case of your answer.
Question in this case is then, even if AS is turned on how do you then allow the BMS to switch on the charging FETs, so the charger module is connected to the battery?
Okay, I see now. If you go with what I said then charging the board via usb would overcharge cells and whatnot. Only way would be to have separate terminals for charge in and charge out. Then it would be in parallel with the charge circuit and the ESC
Sorry for asking more questions, but I’m gonna ask if there is ambiguity.
Do you mean 2 USB-C -ports, one for charging the board and other for powerbank output, or do you mean 1 USB-port and then two connectors on the charger module’s battery pack side output, one to connect to the BMS’ charger port and other to directly connect to the pack?
I mean you may have a point, but did you see his flowchart? There were a couple cool features that this theoretically would have over normal circuits. I think also new things have come out since this idea was originated
42Vout isn’t too hard to do efficiently. Getting to 84V from 20V is tough and it will run hot. The new 48V PD standard will eventually help with that though as 48V to 84V can be done very efficiently. But only about 2.5A will be available.