I’m trying to figure this out at the moment.

What is the best way to power a laptop in an off-grid setup? Mine will be primarily solar + AGM battery.

I think the simplest “just works” set up is to get a “pure sine” inverter and go:

solar > battery > inverter > power supp > laptop

The thing is, if I understand correctly you have a big inefficient inverter to AC only to transform back to DC, with the only benefit being that the plug fits in the socket.

I’m curious to know how a generator ruins a power supply? Is it something to do with the arcane sine wave magic from the inverter?