Gotcha, so anything above powering lights and charging phones will need beefier batteries.

These were the batteries I was eyeing as an upgrade down the road. Looks like I'll need more of them than I thought to run the console. I'm not sure where I did my math wrong but I was thinking I'd get 4-6 hours out of that system before it completely drained.

For what it's worth with the coffee machine, I did fine some lower wattage ones. This one is 650 watts and I've found one that runs off a 12 volt cigarette outlet and claims 190 watts.