A good 12-volt refrigerator for the car is the Koolatron 26-quart soft-sided electric travel cooler, according to Best Refrigerator Central. This model is lightweight and easy to carry, thanks to a convenient strap. It holds up to 32 12-ounce cans.
The 12-volt adapter of the Koolatron cooler plugs into any car cigarette lighter. The bag features thermodynamic materials and cools below 30 degrees Fahrenheit. The soft sides of the cooler allow users to fit more items into it, while the external pocket gives even more storage. The bag itself weighs 7 pounds before any items are placed into it, and it contains two external beverage holders for extra convenience.