Hello I drive for a truck company and am getting tired of being charged for idling my truck to keep my batteries from depleting. I have a 2000w inverter now that's hooked to the truck. I had the idea of putting a few deep cycle batteries and charging them somehow with truck inverter or outlets while I drive so I don't have to idle. Is this possible? If so what would I need to get? I have never used any kind of setup like this before solar or offers anything tho I have always been interested in it. Thank you.