Challenger coach batteries
We will be doing some dry camping soon, and want to make sure we have enough juice to run the fridge. We will be able to run the generator some to charge but want to be able to keep the fridge running as long was possible on battery.
Looking for guidance on upgrading our coach batteries. We'd like to either add two more, or replace with 4 new. Who has done done this and what did you do? How did your upgrade work for you. Any input appreciated!