Induction cook top

If you are dry camping, relying on an induction cooktop is kind of marginal with only 2 batteries and no generator. At a minimum you would need a 2000 watt inverter and that wattage would draw about 170 amps from your batteries. I don't think that convention deep cycle batteries could deliver that much amperage. You could compensate by using lower power levels but that would require longer heating times.

Perhaps a better approach would be to buy a Coleman (or equivalent) camping stove that uses butane cylinders for dry camping. Those stoves are simple and reliable but you would want to provide ventilation when they are in use.