I'm kinda on the fence about going dual too. I have a winch and would like to do some camping with the truck. Maybe a long road trip around the country as I've never been out west. But I use a c-pap... Thinking if I had a dual setup maybe I could wire the inverter to work all the time off the second battery for that, a small fridge, and have that dedicated pretty much to the winch also. I don't know. Probably don't need it but it would be nice. Of course it would be way cheaper to do such a trip on my V-strom anyhow. Battery pack that charges off a USB for the C-pap and just forget cold stuff. Way easier and probably more fun on the bike anyhow.