backchannel: hooking up a jackery to a fuse box

I’m starting to see an upswing in people asking if it’s ok to connect a solar generator to a fuse box or other power distribution point. I think this is what’s playing out: user fails to accurately assess the loads they will be running in the van user buys the jackery/yeti/whatever believing it to be a complete

Donor power fail: Yeti 150

I have a little power donation setup just inside the side entrance.  2x USB and a ciggy plug.  I figure folks with more advanced 12v outlets don’t need help.  🙂 Neighbor Cindy has a Yeti 150 that needed charging so I invited her to plug it in.  It shows it’s taking a charge but no