I just wanted to share the power system that I rigged up over the last burn so that maybe others can learn from/improve/steal the idea without credit.
- a 12v Costco Deep Cycle Marine Battery
- a 5 amp fuse (for safety) (Amazon Link)
- an array of car cigarette lighter adapters. (Amazon Link)
- a spool of 12 gauge wire
- battery clips
- a switch (if you're feeling fancy)
Learn how to connect wire. Splice it, solder it, shrink tube it, whatever. Find a way that works for you. Wire the battery clips to a string of wire. Splice in the fuse socket and drop in your 5 amp fuse. Splice in the cigarette lighter array. It should go like this:
(-) Battery Terminal Clip -> (optional switch) -> Fuse -> Sockets -> (+) Battery Terminal Clip
You now have two modular 12v sockets. You can add additional splitters if you need. Investigate online and at truckstops and you can find all kinds of useful 12v stuff. I found some 12v car christmas lights and used those to light my yurt. Also, you can find 12v fans (for personal cooling or swamp coolers) pretty easily. This setup lasted me all week on one battery. I was running lights (continuously), a Figjam cooler and a fan. Be mindful of turning off stuff when you're not using it (which is where the switch comes in). They also sell battery boxes at automotive stores. This is a good investment for when you stumble home and don't want to worry about knocking the clips off your battery.
Word of caution: DON'T GO NUTS. You've only got 5 amps on here. Yes, they sell 12v refrigerators and cook-surfaces. No, you probably don't need them. Look on the back of the boxes for your power draw. Keep in mind that your total shouldn't exceed 5 amps. This should be more than enough.
Hope this is useful.