muehlpower wrote: ↑Thu Jun 03, 2021 1:08 pm May be. Unfortunately, jlcpcb does not have the transmission amplifier in its range. I can send you a sample if you want.

Where is a way to get a Gerber files for this PCB?

Now in the diagram you will see the lim (charge controller) A250*4B pin 5 is called U_HV_DC which seems to be the measured hv on the charge port via that little extra board on the back cover. Yes that's right. I thought of a small circuit that takes over this voltage measurement. Maybe you can see ...