Hello,
I have finaly build (recreated) what Charles showed...

I have one problem now. How to turn MCP for the first time battery is inserted.
Can someone show me how he did it?

My schema looks like this and is EN by low state from voltage supervisor.

@cdmsjtr
Sorry for my late response, I'm still working on it, the card is not in production yet, I need to finalize small things.

Charles