Powered 12 Volt Cooler, 25L. Dometic’s smallest electric portable cooler designed for your toughest adventures. The small 12 volt cooler is perfect for car camping and smaller vehicles. The award winning Dometic's CFX3 is the best single zone electric cooler to use as a car fridge or freezer, reaching temperatures as low as -7°F, while using less power than a 60W light bulb. The high-performing compressor cooler was built for backroads, mounted on springs to isolate noise and reduce vibration. Powered by AC (110-240), DC (12 / 24 volt), or solar power, the CFX3 25 car cooler connects to a phone app – allowing easy temperature monitoring and control.