Need some advice...I just build a small camper out of a 6 by 12 cargo trailer for dispersed camping. I am putting in 3 12v 206ah lithium batteries in parallel. So 12v 618 ah. 800 watts of solar. 100amp mppt solar controller. A aims 3000 watt to 9000 watt surge inverter/charger. My question is....with this set up which draws the less amount of power from battery bank. Running Ac equipment ...apicool fridge/freezer , a TV/Dvd player. A couple led lights. Or should I use Dc equipment. So I guess the main question is Does Ac draw less power from the batteries over a day or does Dc ???