As an alternative to a traditional cooler, I decided to look into a powered cooler. But I was concerned that the cooler wouldn’t stay cool enough overnight while sitting in the truck. Then I started investigating portable power stations and zeroed in on the Jackery Explorer 1000 Portable Power Station. It has a built in lithium battery and inverter to power 110V and 12V devices. You can also get 100W solar panels to charge it during the day.