Green Camel refrigerators/freezers provide outstanding economical and reliable operation. They are equipped with zero maintenance, very efficient brushless, thermostatically controlled DC compressor, which operates on 12 or 24 VDC. The refrigerator/freezers can run exclusively on battery or a combination of battery and solar panels. In the battery option, the freezer runs on battery while the battery charger draws energy from public electric power supply to charge the battery when available.