Edited to add: The battery is fine, the Charge Wizard did it's job and the battery was fully charged and perfect. I on the other hand am a dork. I forgot that I had hit the "Battery Disconnect" swit...
If you do much off grid camping deep cycle batteries are the best. Many use two Costco or Walmart 6v deep cycle batteries in series. Second choice would be a marine 12v battery, also Costco or Walmart.
I don't have space for 2 batteries without a lot of work, so I use a Costco Marine battery.
Any 12v battery will work. Battery life will be different with different types of batteries.