reat product. I took on 2 week road trip. Never stopped for ice or food. Holds plenty of food and drinks to last 1-2 people weeks. I had the freezer side going and the frig side all powered by 200 watts of solar with a deep cycle 12v battery for night. When parked in heavy shade and thru the night temperature climbed to minimize battery discharge but always stayed cold enough it did not thaw out on freezer side. The built in control features to minimize draining the battery work nicely.