korbe wrote:
We have 2 Trojan 6-volt total 225 amp hour batteries. When my wife and I boondock in the summer months, and in conserve mode, we can enjoy our time using about 20 amps per day, about 10%. After about 6 days, it's time to recharge the batteries, dump the tanks and refill the fresh water tank.
This is my experience also. After 7 days batteries are at 50%,60 gals of water is gone unless I use backpacker tricks, and laundry needs to be done. For 4 days and minimal battery use as you described I would just use what you have and when it is time to replace buy two 6v GC batteries.