Generally speaking, you will need #4 or #2 welding cable, depending on the length of the run, Crimp lugs with 5/16" stud hole and a crimp tool for those lugs. Alternatively to making them your self you can estimate you length and have the cable made up if that works better for you.
If the battery location is the same location as your current battery, the existing cable connectors may reach your new battery terminals. If they are not long enough, you will have to get more creative and add a couple of insulated battery battery posts to connect to.
The wife and I booney camp most of the time. We have 4, Lifeline GLP-4CT batteries. Absolutely love them.