How many days do you sit in one place? Remember the Engles is designed for low draw. With one Optima Red Top in the hot sun you can go for 48hrs with no problem starting. With a Yellow top I have never drained the battery. You can further extend life to maybe a week or so if you turn the fridge off at night, temperatures outside allowing. 2 batteries are not needed.

1996 SR From the Area 51 Skunk Works. 37"BFG Tires, 5" lift, Rock Track 4:1 Case, Tom Woods Drive Shafts, Oasis Air, Front ARB, lifted gas tank, T-max winch and lots of stuff that cost too much.