I saw this and thought it might suit my needs:
https://www.renogy.com/renogy-rugged-power-pack
It’s has a 36Ah lithium battery, solar charge controller, inverter, and charger all built in. And it’s 12 pounds. Ideally I would connect it to a fuse block to run my fantastic fan and LED lights. There is a DC out port which uses a cigarette lighter type port. I’m thinking I will cut of one end of the cable and attach the leads to the fuse block or make a cable with a heavier gauge wire.
Thoughts?